Random
Mystery
Regents
100
Draw two planets and indicate the direction of the force due to gravity using vectors on both planets
towards each other
100
An item whose mass is 100 kg would weight how much on the surface of the Earth?
What is 981 Newtons?
100
A motorboat, which has a speed of 5 meters per second in still water, is headed east as it crosses a river flowing south at 3.3 meters per second. What is the magnitude of the boat’s resultant velocity with respect to the starting point?
6 m/s
200
When two planets of mass m1 and m2 are separated by a distance, r, the magnitude of the force between them is F. What would be the magnitude of the force between the planets be if the mass of one planet doubled, the mass of the second planet was quadrupled and the radius was doubled?
2F
200
Two 20.-newton forces act concurrently on an object. What angle between these forces will produce a resultant force with the greatest magnitude?
0 Degrees
200
A 3.00-kilogram mass is thrown vertically upward with an initial speed of 9.80 meters per second. What is the maximum height this object will reach? [Neglect friction.]
4.90 m
300
An 800 kg car is on a circular race track with a radius of 400 m. The car is traveling at a constant speed of 80 m/s. What is the centripetal acceleration (magnitude and direction)?
16 m/s/s towards the center
300
The frictional force needed to accelerate a 1000.-kg vehicle from rest on a dry, level asphalt road.
What is 8339 Newtons?
300
Jill is pulling a 200. Newton sled through the snow at constant velocity using a horizontal force of 10. Newtons. What is the kinetic coefficient of friction of the sled on the snow?
0.05 N
400
Mr. Neumann is twirling a 0.2 kg yoyo around his head in a circular path with a radius of 0.5 m. If it takes the yoyo 8 seconds to go around 10 times. Determine the speed of the yoyo.
3.9 m/s
400
The height of a tower from which a dropped metal ball falls for 3.4 seconds before hitting the ground.
What is 57 meters?
400
An 80-kilogram skier slides on waxed skis along a horizontal surface of snow at constant velocity while pushing with his poles. What is the horizontal force pushing him forward?
40 N
500
What is the minimum horizontal force needed to start a 300. kilogram steel block on a steel table in motion?
2220 N
500
The maximum velocity of a 1500.-kg car turning with a radius of 10 meters on a wet concrete road.
What is 7.54 meters per second?
500
a train travels 300 km in 3.6 x 103 seconds. What is its speed in m/s?
83.3 m/s