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A body travels 200 cm in the first 2 second and 220 cm in the next five second .calculate the velocity at the end of the seventh second from the start
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A body travels 200 cm in the first 2 second and 220 cm in the next fiv...
Let initial velocity = u & acceleration
distance travelled in 4 sec = S6
using , s=ut + at2/2
S6 = 4u + a36/2
= 6u+18a
distance covered in 2 sec = S2 = 2u + 4a/2
=2u+2a = 200 (given)
u+a = 100 ........................1
now distance covered in 2 to 6 sec is given 220cm
S6-200 = 220
6u + 18a = 420
u+3a = 70 .................2
from 1& 2
a = -15 & u=115
velocity after 7 sec = V7
V7 = u + at
=115 - 15*7=10cm/sec
distance travelled in 4 sec = S6
using , s=ut + at2/2
S6 = 4u + a36/2
= 6u+18a
distance covered in 2 sec = S2 = 2u + 4a/2
=2u+2a = 200 (given)
u+a = 100 ........................1
now distance covered in 2 to 6 sec is given 220cm
S6-200 = 220
6u + 18a = 420
u+3a = 70 .................2
from 1& 2
a = -15 & u=115
velocity after 7 sec = V7
V7 = u + at
=115 - 15*7=10cm/sec
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A body travels 200 cm in the first 2 second and 220 cm in the next five second .calculate the velocity at the end of the seventh second from the start ?
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A body travels 200 cm in the first 2 second and 220 cm in the next five second .calculate the velocity at the end of the seventh second from the 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 A body travels 200 cm in the first 2 second and 220 cm in the next five second .calculate the velocity at the end of the seventh second from the start ? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A body travels 200 cm in the first 2 second and 220 cm in the next five second .calculate the velocity at the end of the seventh second from the start ?.
A body travels 200 cm in the first 2 second and 220 cm in the next five second .calculate the velocity at the end of the seventh second from the 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 A body travels 200 cm in the first 2 second and 220 cm in the next five second .calculate the velocity at the end of the seventh second from the start ? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A body travels 200 cm in the first 2 second and 220 cm in the next five second .calculate the velocity at the end of the seventh second from the start ?.
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