Recent content by ashvinthecha

How do I do that?

I divided the total kinetic energy by two... and is momentum the answer to your question

Homework Statement A ball of mass 0.8kg moving initially at 8.0m/s has a head on collision with a 0.4kg ball that is at rest. If the collision is perfectly elastic, what is the velocity of each ball after the collision? Homework Equations Ek=(mv2)/2 The Attempt at a Solution I...

Homework Statement A ships captain wants to sail east. His ship experiences a current of 5.0 km/h [N]. The ships engine can produce a speed of 20 km/h. What must the ships heading be and what is the ground velocity of the ship. I really don't know what to do I was hoping someone can tell me...

Homework Statement A speeding car traveling at 20m/s passes a stationary police car, which immediately begins to accelerate at 2.0 m/s. The speeder travels with uniform motion until the police car is along side. How long does it take the police car to catch up to the speeder. Speeder: v1...

Pulley question -test tomorrow! Homework Statement In an Atwood's Machine, the larger mass is 1.8kg and the smaller mass is 1.2. (A)Ignoring friction what is the acceleration of the masses? (B)What is the tension of the string. Homework Equations Fnet=ma The Attempt at a...

Homework Statement In an Atwood's Machine, the larger mass is 1.8kg and the smaller mass is 1.2. (A)Ignoring friction what is the acceleration of the masses? (B)What is the tension of the string. - I know you have to find the acceleration to get the tension but i don't know how to find...