Acat runs and jumps from one roof top to another which is 5 m away and 3 m below. calculate the minimum horizontal speed with which the cat must jump off the first roof in order to make it to the other.

Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?