JEE Exam > JEE Questions > From the top of a tower, 80 m high from the g...
Start Learning for Free
From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively by
- a)6 s, 64 m
- b)6 s, 48 m
- c)4 s, 32 m
- d)4 s, 16 m
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
From the top of a tower, 80 m high from the ground, a stone is thrown ...
time of flight (t) = 
Most Upvoted Answer
From the top of a tower, 80 m high from the ground, a stone is thrown ...
To solve this problem, we need to use the equations of motion. Since the stone is thrown horizontally, the initial vertical velocity is zero.
We can use the equation for vertical displacement:
y = ut + (1/2)gt^2
where:
y = vertical displacement (80 m)
u = initial vertical velocity (0 m/s)
t = time (unknown)
g = acceleration due to gravity (-9.8 m/s^2)
Plugging in the values, we have:
80 = 0*t + (1/2)(-9.8)t^2
80 = (-4.9)t^2
Simplifying further:
t^2 = 80/(-4.9)
t^2 = -16.33
Since time cannot be negative, there is no real solution to this equation. This means that the stone will not hit the ground when thrown horizontally from the top of the tower. It will continue to move horizontally until it runs out of horizontal velocity or encounters some other obstacle.
We can use the equation for vertical displacement:
y = ut + (1/2)gt^2
where:
y = vertical displacement (80 m)
u = initial vertical velocity (0 m/s)
t = time (unknown)
g = acceleration due to gravity (-9.8 m/s^2)
Plugging in the values, we have:
80 = 0*t + (1/2)(-9.8)t^2
80 = (-4.9)t^2
Simplifying further:
t^2 = 80/(-4.9)
t^2 = -16.33
Since time cannot be negative, there is no real solution to this equation. This means that the stone will not hit the ground when thrown horizontally from the top of the tower. It will continue to move horizontally until it runs out of horizontal velocity or encounters some other obstacle.
|
Explore Courses for JEE exam
|
|
Top Courses for JEEView all
Question Description
From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer?.
From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer?.
Solutions for From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice From the top of a tower, 80 m high from the ground, a stone is thrown in the horizontal direction with a velocity of 8 ms–1. The stone reaches the ground after a time ‘t’ and falls at a distance of ‘d’ from the foot of the tower. Assuming g = 10 ms–2, the time t and distance d are given respectively bya)6 s, 64 mb)6 s, 48 mc)4 s, 32 md)4 s, 16 mCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice JEE tests.
|
|
Explore Courses for JEE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup