Question

A constant force acts on an object of mass 5 kg for a duration of 2.5 s. It increases the object’s velocity from 3 m /s to 8 m /s. Find Initial momentum

Answer 1

Explanation:

refer to the attachment pls

Answer 2

Answer:

Initial Momentum = 15 kg m/s

Final Momentum = 40 kg m/s

Explanation:

Initial Momentum (p-initial):

Mass(m) = 5 kg

Initial Velocity(u) = 3 m/s

p-initial = m*u

p-initial = 5 kg * 3 m/s

p-initial = 15 kg m/s.

Final Momentum (p-final):

Mass(m) = 5 kg

Final Velocity(v) = 8 m/s

p-final = m*v

p-final = 5 kg * 8 m/s

p-final = 40 kg m/s.