Question

A 0.1 kg body moves at a constant speed of 10 m/s. It is pushed by applying a

constant force for 2 sec. Due to this force , it starts moving exactly in the

opposite direction with a speed of 4m/s. ​

Answer 1

what is the questions.give me complete question

Answer 2

Hello Dear,

I suppose you want to know the external force applied here.

● Answer -

F = -0.7 N

● Explanation -

# Given -

u = 10 m/s

v = -4 m/s

m = 0.1 kg

t = 2 s

# Explanation -

Force applied can be calculated by -

F = ma

F = m × (v - u) / t

F = 0.1 × (-4 - 10) / 2

F = -0.7 N

Therefore, force applied is 0.7 N in opposite direction.

Hope this helps you. Keep asking..