Consider projectile thrown horizontally at 50 m/s from height of 19.6 meters. the projectile will take time to hit the ground as it would if it were dropped from the same height. a) more
b) less
c)the same

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?