Physics Answers

Two asteroids are separated by a distance of 42.0 m. If one asteroid has a mass of 2.22 x 109 kg and the other asteroid has a mass of  9.87 x 108 kg, what is gravitational force between them?

A 15,600 kg rocket in space fired two thrusters. One thruster propelled the rocket forward with a force of 77,500 N while the second thruster propelled the rocket to port (left) with a force of 27,200 N. Find its acceleration (angle and magnitude).

A force of 4.48 Newtons is applied horizontally while a force of 3.36 N is applied vertically to an object. Find the resultant force (magnitude and angle  from the horizontal).

What is the force needed to accelerate a 0.170 kg hockey puck from rest to 65.2 m/s over a period of 0.610 seconds?

A bull elephant has a mass of 5750 kg. What is his weight?

 A rescue pilot drops a survival kit while her plane is flying at an altitude of 1200.0 meters with a forward velocity of 97.4 m/s. How far in advance of the drop zone should she release the package?

A potato cannon is fired at an angle of 42.0o . If the potato leaves the cannon at a velocity of 62.3 m/s, calculate the range of the potato.

A ball is thrown horizontally at a velocity of 33.0 m/s from a cliff 24.0 meters high. How far from the base of the cliff does the ball land?

1. Two runners decide to race. Runner A is faster than Runner B, so Runner A starts 13.5 meters behind the starting line and Runner B starts on the starting line. Both runners start at the same time. Runner A runs at a speed of 9.65 m/s and Runner B runs at a speed of 8.40 m/s. How far down the track from the starting line does Runner A catch Runner B.

The brakes of an automobile can accelerate it at -7.20 m/s2.  What time is required to reduce the velocity of the automobile from 50.0 m/s to 12.5 m/s?