Recent content by ~*Noor*~

First of all...thanks Galileo's Ghost for all your help Ok...part a: Yes i understand what your saying...my first try was without the negative sign and i still got that wrong...so it must be my method that's messed up And how am i supposed to find the angle? Lastly as long as i know how...

Momentum...Please urgent help! My Question: A 1500 kg car moving east at 38 m/s collides with a 1780 kg car moving south at 15 m/s and the two cars stick together. (a) What is the velocity of the cars right after the collision? _______m/s ______o (b) How much kinetic energy was...

Hello, Q.) A hockey puck moving at 0.48 m/s collides elastically with another puck that was at rest. The pucks have equal mass. The first puck is deflected 39° to the right and moves off at 0.35 m/s. Find the speed and direction of the second puck after the collision. Make sure the speed is...

Q.) The escape speed from the surface of Planet Zoroaster is 15.0 km/s. The planet has no atmosphere. A meteor far away from the planet moves at speed 5.0 km/s on a collision course with Zoroaster. How fast is the meteor going when it hits the surface of the planet? My answer: 15+5=20km/s...