Physics Questions & Answers

Physics Questions & Answers A 10 kg box is resting on a horizontal surface inside a warehouse calculate the normal force acting on the box - CORRECT ANSWER- 98.1 N A 50 Kg car travels clockwise in a Horizontal circle of radius 10 meters at 5 m/s what is the magnitude of the centripetal force acting on the car - CORRECT ANSWER- 150 N A 7000 N polar bear slides down an ice slide , if the slide makes an angle of 40 degrees with the ground calculate the accelerating force - CORRECT ANSWER- 4,499 A ball dropped from abridge takes 3.0 seconds to reach the water below. How far is the bridge above the water - CORRECT ANSWER- 44m A ball is thrown horizontally at a speed of 20 meters per second from the top of the cliff. How long does the ball take to fall 19.6 meter to the ground - CORRECT ANSWER- 2 seconds A ball is thrown horizontally at a speed of 24 m/s from the top of a cliff. If the ball hits the ground 4.0 seconds later how high is the cliff - CORRECT ANSWER- 78 m A baseball is thrown horizontally at 25 m/s from a cliff 45 meters high. If it takes the call 3 seconds to hit the ground, how far from the base of the cliff will the ball hit the ground - CORRECT ANSWER- 75 m A baseball pitcher throws a fastball at 18 meters per second if the batter is 42 meters from the pitcher approximately how much time does it take for the ball to reach the batter - CORRECT ANSWER- 2.3 s