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An object starting from rest Travels 120 m in first 2 sec and 260m in next 4 seconds. find its velocity in 6 seconds after start?
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An object starting from rest Travels 120 m in first 2 sec and 260m in ...
Calculating velocity of an object
- Step 1: Calculate the acceleration of the object during the first 2 seconds using the formula:
acceleration = (change in velocity) / (time taken)
- Step 2: Use the acceleration calculated in step 1 and the time taken in step 1 to calculate the velocity of the object after 2 seconds using the formula:
final velocity = initial velocity + (acceleration x time taken)
- Step 3: Calculate the acceleration of the object during the next 4 seconds using the formula:
acceleration = (change in velocity) / (time taken)
- Step 4: Use the acceleration calculated in step 3 and the time taken in step 3 to calculate the velocity of the object after 6 seconds using the formula:
final velocity = initial velocity + (acceleration x time taken)
Using the given information:
- Distance travelled in the first 2 seconds = 120 m
- Distance travelled in the next 4 seconds = 260 m
- Initial velocity = 0 m/s
- Time taken to travel first 2 seconds = 2 s
- Time taken to travel next 4 seconds = 4 s
Calculating acceleration during the first 2 seconds:
- Acceleration = (Change in velocity) / (Time taken)
- Acceleration = (Final velocity - Initial velocity) / (Time taken)
- Acceleration = (120 m/s - 0 m/s) / (2 s)
- Acceleration = 60 m/s^2
Calculating velocity after 2 seconds:
- Final velocity = Initial velocity + (Acceleration x Time taken)
- Final velocity = 0 m/s + (60 m/s^2 x 2 s)
- Final velocity = 120 m/s
Calculating acceleration during the next 4 seconds:
- Acceleration = (Change in velocity) / (Time taken)
- Acceleration = (Final velocity - Initial velocity) / (Time taken)
- Acceleration = (260 m - 120 m) / (4 s)
- Acceleration = 35 m/s^2
Calculating velocity after 6 seconds:
- Final velocity = Initial velocity + (Acceleration x Time taken)
- Final velocity = 0 m/s + (35 m/s^2 x 6 s)
- Final velocity = 210 m/s
Therefore, the velocity of the object after 6 seconds is 210 m/s.
Community Answer
An object starting from rest Travels 120 m in first 2 sec and 260m in ...
U=0. s1 = 20m, s2= 160m. t1=2sec. , t2=4sec. s= 20+160=180m. t=2+4=6sec. Using formula, s=ut+1/2at2. 180=0*6+1/2*a*6 square. 180=18 a. a=180/18. =10m/s2. t=7sec. v=u+at. =0+10*7. =70m/s.
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An object starting from rest Travels 120 m in first 2 sec and 260m in next 4 seconds. find its velocity in 6 seconds after start?
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An object starting from rest Travels 120 m in first 2 sec and 260m in next 4 seconds. find its velocity in 6 seconds after start? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about An object starting from rest Travels 120 m in first 2 sec and 260m in next 4 seconds. find its velocity in 6 seconds after start? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An object starting from rest Travels 120 m in first 2 sec and 260m in next 4 seconds. find its velocity in 6 seconds after start?.
An object starting from rest Travels 120 m in first 2 sec and 260m in next 4 seconds. find its velocity in 6 seconds after start? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about An object starting from rest Travels 120 m in first 2 sec and 260m in next 4 seconds. find its velocity in 6 seconds after start? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An object starting from rest Travels 120 m in first 2 sec and 260m in next 4 seconds. find its velocity in 6 seconds after start?.
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