Homework Help: Physics

Posted by Shazra on Monday, February 4, 2013 at 6:56am.

A force was applied on a mass of 2kg moving at velocity of 5m/s. If the velocity changed to 20m/s in 4s find the change in momentum and the force

Physics - drwls, Monday, February 4, 2013 at 9:26am
Change in momentum = 2.0 kg*(20 - 5) m/s
= 30 kg*m/s

Force * Time = Change in momentum

Force = (30 kg*m/s)/(4.0 s)
= 7.5 Newtons

Answer this Question

Related Questions

AP Physics - A 3kg object initially moving in the positive x-direction with a ...
Physics - When certain a force is applied to a 2kg standard mass, its ...
Physics - an 88kg cardboard box is being pulled along a level floor. the ...
PHYSICS - A car is moving at a constant velocity of 5.5m/s. How much net force ...
PHYSICS - A car is moving at a constant velocity of 5.5m/s. How much net force ...
PHYSICS - A car is moving at a constant velocity of 5.5m/s. How much net force ...
physics - The velocity of a toy car of mass 2kg increased from 5m/s to 10m/s in ...
Physics - The mass of glider X is 0.2kg and its velocity is 1.5m/s to the right...
Physics - (10 points) 3. Use your data from Part 3 and Newton’s laws to ...
physics - A 2.0 kg particle is moving along the x axis to the left with a ...

For Further Reading

First Name:
School Subject:
Answer: