## A body started from rest ,moving in a straight line path with uniform acceleration with 2m/2^2 , then find a)velocity at the end of displace

Question

A body started from rest ,moving in a straight line path with uniform acceleration with 2m/2^2 , then find a)velocity at the end of displacement of 20 m b)velocity at the end of time 20 sec c) displacement covered in 4 sec d) displacement covered in 3 sec e) displacement covered in 4th sec f) time to travel 25 m please answer fast and don’t write irrelevant answers who ever answers will be marked as the brainliest please end fast it is urgent

in progress 0
4 weeks 2021-08-22T22:36:18+00:00 2 Answers 0 views 0

a) 4 √8m/s b) 40 m/s c) 16m d) 9m e) 16m f) 15s

Step-by-step explanation:

Given a= 2m/s^2 , u=0

a) Given S=20

By the formula

v^2 =u^2 + 2as

v^2= 0 + 2 (2)(20)

v^2= 80

v=4√8 m/s

b)Given t=20s

v=u + at

v=0 + (2)(20)

v= 40 m/s

c) Given t=4s

s=ut + 1/2 at^2

s= 0 + 1/2 (2)(4)^2

s= 16 m

d) Given t=3s

s=ut + 1/2 at^2

s= 0 + 1/2 (2)(3)^2

s= 9m

e) Given t=4

s=ut + 1/2 at^2

s= 0 + 1/2 )(2)(4) ^2

s= 16m

f) Given S=25 m

s=ut + 1/2 at^2

25=0 + 1/2 (2) t^2

t^2 = 25

t = 5s

Hope it helps!!