Study Guide for CA3

The force of friction on a sliding object is 10 Newtons. The applied force needed to maintain a constant velocity is

10N

A hockey puck is set in motion across a frozen pond. If ice friction and air resistance are neglected the force required to keep the puck sliding at constant velocity is

0 N

The force required to maintain an object at a constant velocity in free space is equal to

0 N

A student weighs 200. N. If he is in an elevator that is accelerating upward at 2.00 m/s2, what will be his weight

400 N

A skydiver, who weighs 500 N. reaches terminal velocity of 90 km/h. The air resistance on the diver is then

500 N

An object is propelled along a straight-line path by a force. If the net force were doubled, the object's acceleration would

Double

An elephant and a feather fall from a tree through the air to the ground below. The amount of air resistance force is greater on the

Elephant

A mass is being pushed to the right at a constant velocity. Which vector best represents the frictional force?

I

The driver of a pickup truck traveling north at 20 m/s suddenly stops. In which direction will a suitcase lying in the center of the frictionless truck bed move?

IV

An unfortunate bug splatters against the windshield of a moving car. Compared to the force of the car on the bug, the force of the bug on the car is

The same