Question

A body moves with a velocity 40 metre per second come to rest after 4 second if the mass of the object is 26 kg what will be the force applied on the body to bring to rest

Answer 1

Explanation:

From above figure

A→B

u = 4m/s v=0 t=2sec a=?

v=u+at

0=4+a(2)

a=−2m/s

2

so,

force = ma

=2×2=4N

Hence 4N is correct answee

Answer 2

Answer:

answer. 4 n

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