Question

body is moving vertically upwards. Its velocity changes at a constant rate of 60m/s to 40 m/s in 2 s. Find its retardation.
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Answer 1

Answer:

Explanation:

Acceleration, a=  

Time

FinalVelocity−InitialVelocity

​

=  

3s

20m/s−50m/s

​

=−10m/s  

2