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The definition of a collision has always confused me.
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Solved in 4 steps with 4 images
- A soccer player kicks a 2 kg ball with a force of 900 N. His toe is in contact with the ball for 2 s. What is the impulse?An 11 kg meatball is sitting on a plate. Suddenly it explodes, breaking up into two pieces. One piece has a mass of 4.0 kg and went toward the right with a velocity of 21 m/s. What was the velocity of the other piece?A 1120 kg car experiences an impulse of 30,000 N s during a collision with a wall. What was the speed of the car just before the collision? I think impulse is a type of coasting force.
- A 2210 kg car experiences an impulse of 20,000.0 N · s during a collision with a wall. If the collision takes 0.43 s, what was the velocity of the car just before the collision? 27 m/s 18 m/s 9 m/s 10 m/s 12 m/sTwo sedans travel along the same road in opposite directions. The BMW car traveling north has a momentum of 2000 kg-m/s while the Honda car traveling south has a momentum of 5000 kg-m/s. They collide. After the collision, what is their total momentum?A bicyclist going 2.5 m/s is stopped in a collision by an impulse of 250 N.s. The collision takes 0.5 seconds. The positive direction is the direction of travel. What is the combined mass of the bicyclist and bicycle?
- A ball of mass 3.8 kg moving east with a speed of 4.5 m/s collides head-on with a 7.6-kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?A 1.5 kg soccer ball is initially kicked at a speed of 10 m/s and eventually comes to rest on the ground. What is the soccer ball's impulse?Two balls collide and bounce off each other. The 500-g ball's initial velocity is 20 m/s while the 800-g ball has an initial velocity of 35 m/s. (a) What is the final velocity of the 500-g ball if the 800-g ball has a speed of 15 m/s after the collision?
- A volleyball is spiked so that it's incoming velocity of 4.53 m/s is changed to an outgoing velocity of -22.2 m/s. The mass of the volleyball is .350 kg. What is the magnitude of the impulse that the player applies to the ball?PROBLEM SOLVING: Ballistic Pendulum. A 0.032 kg bullet strikes a 5 kg wood that is initially at rest and embeds in the wood. If the subsequent velocity of the block is 3.8 m/s, what is the initial velocity of the bullet? What is the type of collision?A 1.9 kg block slides along a frictionless surface at 1.1 m/s. A second block, sliding at a faster 4.3 m/s, collides with the first from behind and sticks to it. The final velocity of the combined blocks is 2.3 m/s. What was the mass of the second block?