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a car is moving with velocity 21 m\s for 20 s.calculate the acceleraion?

a car is moving with velocity 21 m\s for 20 s.calculate the acceleraion?

Grade:11

3 Answers

Arun
25750 Points
5 years ago
Dear student
 
acceleration will be zero
 
As acceleration is defined as the change in velocity with respect to time. but here velocity is constant hence no change. So acceleration is constant
Arun
25750 Points
5 years ago
Dear student
 
acceleration will be zero
 
As acceleration is defined as the change in velocity with respect to time. but here velocity is constant hence no change. So acceleration is 0
Tony
108 Points
5 years ago
We do acceleration as v/t but its actually change in velocity with resect to time. 
So, a = dv/dt.
But here dv =0 so a =0 as v is constant.
 

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