Apulley system can
a. change the direction of a force.
b. multiply the force.
c. increase the amount of work done.
d. both a and b
e. both b and c

Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?