Physics One Questions & Answers

Physics One Questions & Answers A baseball pitcher throws a 100 mph fastball to batter Brandon Bopp. Bopp hits a 450 foot home run out of the park. When the ball contacts the bat, which force was greater: the force of the ball on the bat or the force of the bat on the ball? - CORRECT ANSWER- The two forces are the same A block has acceleration a when pulled by a string. If two identical blocks are glued together and pulled with twice the original force, what will their acceleration be? (1/4) a (1/2) a a 2 a 4 a - CORRECT ANSWER- a A football quarterback throws a football. After it leaves his hand, what forces are acting on the football? - CORRECT ANSWER- Force of gravity, drag force from air A train engine pulls two identical cars behind it. Car 1 is attached directly to the engine, and car 2 is attached to car 1. The engine and cars are speeding up. The force of the engine on car 1 is _____ the force of car 1 on car 2. a. greater than b. less than c. equal to d. There is no force on either car. - CORRECT ANSWER- a. greater than