A roller coaster car passes through the top of a loop and it is inverted. The passenger feels 1.5 times heavier than they ordinarily do. What is the net force on the passenger? a. mg b. The normal force c. Zero d. mv^2/r

2. An object of mass M-40 kg is pushed up an inclined plane with an acceleration of 0.5 m/s by a force T. The force T is parallel to the horizontal. The inclined plane forms an angle of 0-37 with the horizontal. The coefficient of kinetic friction of an object with an inclined plane is 0.20. a. Draw a free-body diagram of the forces acting on the block as it is pushed up an inclined plane. b. Determine the magnitude of the force T.

QUESTION 3 If a 1,000-kg car is traveling at 20.0 m/s when it reaches the bottom of a circular hill of radius 8.00 m, what normal force does the road exert on the car at the bottom of the hill? a. 59,800 N b. 82,500 N C. 40,000 N d. 70,000 N e. 19,600 N

A heavy ball is thrown straight upward. After the ball leaves the thrower's hand, what forces act on the ball? a. A constant downward force from gravity, along with a steadily decreasing upward force from the thrower. b. A steadily decreasing upward force from the thrower on the way up, then a nearly constant force from gravity on the way down. c. A downward force of gravity that decreases substantially as the ball gains height, then increases substantially as the ball falls back downward. d. A steadily decreasing upward force from the thrower on the way up, then a steadily increasing force from gravity on the way down. e. A nearly constant downward force of gravity.