A soccer player hits a 0.20 kg ball which is incoming with a speed 5 m/s. After the kick, the ball changes its direction by 90 degrees and keeps its original speed. What is the average force exerted by the player if the impact time is 0.02 seconds?
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- A 850 g cart is released from rest on a frictionless, 45 ∘ ramp, 120 cm from the bottom of the ramp. It rolls down, bounces off a rubber block at the bottom, and then rolls 80 cm back up the ramp. A high-speed video shows that the cart was in contact with the rubber block for 15 ms. What was the magnitude of the average force exerted on the cart by the block measured in newtons?A 4.10-kg steel ball strikes a wall with a speed of 13.0 m/s at an angle of ? = 60.0° with the surface. It bounces off with the same speed and angle (see figure below). If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball?A 0.507-kg ball, initially moving with a speed of 3.49 m/s, bounces off a wall and then moves with a speed magnitude half of its original directed in the opposite direction. If the ball is in contact with the wall for 6.7 ms, what is the magnitude of the average force that the wall exerts on the ball? Express ans in 2decimal places, in Newtons.
- A 3.30-kg steel ball strikes a wall with a speed of 11.0 m/s at an angle of 0 = 60.0° with the surface. It bounces off with the same speed and angle (see figure below). If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball? (Assume right and up are the positive directions.) Fx N Fy yA 4.10-kg steel ball strikes a wall with a speed of 11.0 m/s at an angle of ? = 60.0° with the surface. It bounces off with the same speed and angle (see figure below). If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball? (Assume right and up are the positive directions.) Fx = Fy =Physics A catcher in a baseball game stops a pitched ball originally moving at 49.0 m/s49.0 m/s in the positive direction at the moment it first comes in contact with the catcher’s glove. After contacting the glove, the ball travels an additional 10.5 cm10.5 cm before coming to a complete stop. The mass of the ball is 0.145 kg.0.145 kg. What is the average force ?F that the glove imparts to the ball during the catch?
- You are playing volleyball. Your hand was in contact with the ball for 3milliseconds during the rally. The 1000gram ball leaves your hand with a speed 2.4m/s. Calculate the average force of you exerted on the volleyball.A 3.12-kg steel ball strikes a massive wall at 10.0 m/s at an angle of ? = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.206 s, what is the average force exerted by the wall on the ball? magnitude N directionA 980-kg sports car collides into the rear end of a 2500-kgkg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.9 mm before stopping. The police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. Question: What was the speed sports car at impact? v=??
- You’re an accident investigator at a scene where a drunk driver in a 2200 kg car has plowed into a 1400 kg parked car with its brake set. You measure skid marks showing that the combined wreckage moved 20 m before stopping, and you determine a frictional coefficient of 0.78. What do you report for the drunk driver’s speed just before the collision?A 980-kgkg sports car collides into the rear end of a 2500-kgkg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.9 mm before stopping. The police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. v= ? m/s *0.40 and 0.76 m/s are wrongA 1.2-kg rubber ball of speed 8.0 m/s hits a floor and bounds back at speed of 6.0 m/s. Suppose the rubber ball is in contact with the floor for 2.0 ms, what is the magnitude of the average force exerted by the floor on the rubber ball? * O 1.2 kN. 7.7 kN. 8.4 kN. 9.1 kN. O 9.8 kN.