An 8.00 kg shell initially moving at 28.8 m/s [East] explodes into 3 fragments. A 3.00 kg fragment flies directly north at 50.0 m/s and a 2.00 kg fragment flies directly east at 40.0 m/s. Calculate the velocity of the third fragment.

Which two particles are found in the center of an atom

What is friction? how does it affect the motion of an object?

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?