Two trains start a journey at the same time 120 miles apart, travelling towards each other. the first train is travelling at 60 mph and the second train is travelling at 40 mph. how long does it take for the two trains to meet?

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

What equation is used to calculate the weight of an object on a plant ?