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Football Collision A 96 kg running back, moving at 5.29 m/s, runs into a 109 kg...
On a touchdown attempt, a 95.0 kg running back runs toward the end zone at 3.75...
On a touchdown attempt, a 95.0 kg running back runs toward the end zone at 3.75 m/s. A 111-kg linebacker moving at 4.10 m/s meets the runner in a head-on collision. If the two players stick together. (a) What kind of collision is it and what quantity is conserved in this problem? (0.5 point) (b) Write down the appropriate conservation equation for the system. (0.5 points) (c) Find the final velocity vf. (both magnitude and direction) (0.5 points) (d) Calculate...
A car with mass MC = 1.26 x 103 kg runs into the back of a...
A car with mass MC = 1.26 x 103 kg runs into the back of a truck with mass MT = 3.23 x 103 kg that is initially at rest. Immediately after the collision, the car is moving with a speed of 1.09 m/s and the truck is moving with a speed of 3.29 m/s, both in the direction the car was initially traveling. What is the total kinetic energy lost in the collision? (Of course, the change in energy...
A 1,500 kg car moving with a speed of 4.00 m/s collides with a 50,000 kg...
A 1,500 kg car moving with a speed of 4.00 m/s collides with a 50,000 kg truck moving with a speed of 1.80 m/s in the same direction. If the collision is perfectly inelastic, the change in kinetic energy of the car is 12,000 0 -2,600 O-14,600 O -9,390 O none of these Ne Previous A 1,500 kg car moving with a speed of 4.00 m/s collides with a 50,000 kg truck moving with a speed of 1.80 m/s in...
(non calculus physics) A college fullback weighing 100 kg is running north at a speed of...
(non calculus physics) A college fullback weighing 100 kg is running north at a speed of 4.5 m/s when he is tackled by a 110 kg linebacker running east at 3.5 m/s. Assume the collision is perfectly inelastic. Find the velocity of the players just after the tackle. Find the kinetic energy lost as a result of the collision. How do you account for this apparently “lost” energy?
A 73.3-kg linebacker ("X") is running at 6.71 m/s directlytoward the sideline of a football...
A 73.3-kg linebacker ("X") is running at 6.71 m/s directly toward the sideline of a football field. He tackles a 91.7-kg running back ("O") moving at 8.61 m/s straight toward the goal line, perpendicular to the original direction of the linebacker. As a result of the collision both players momentarily leave the ground and go out-of-bounds at an angle φ relative to the sideline, as shown in the diagrams below. What is the common speed of the players, immediately after...
Suppose that a 112.5 kg football player running at 8.5 m/s catches a 0.44 kg ball...
Suppose that a 112.5 kg football player running at 8.5 m/s catches a 0.44 kg ball moving at a speed of 25 m/s with his feet off the ground, while both of them are moving horizontally. Calculate the change in kinetic energy of the system, in joules, after the player catches the ball. Calculate the change in kinetic energy of the system, in joules, in this case.
A 75.0-kg fullback running east with a speed of 4.00 m/s is tackled by a 91.0-kg...
A 75.0-kg fullback running east with a speed of 4.00 m/s is tackled by a 91.0-kg opponent running north with a speed of 3.00 m/s. (a) Why does the tackle constitute a perfectly inelastic collision? (b) Calculate the velocity of the players immediately after the tackle. magnitude direction (c) Determine the mechanical energy that is lost as a result of the collision. (d) Where did the lost energy go?
A 190-kg rugby player running east with a speed of 4.00 m/s tackles a 99.0-kg opponent...
A 190-kg rugby player running east with a speed of 4.00 m/s
tackles a 99.0-kg opponent running north with a speed of 3.90 m/s.
Assume the tackle is a perfectly inelastic collision. (Assume that
the +x axis points towards the east and the +y
axis points towards the north.)
(a) What is the velocity of the players immediately after the
tackle?
magnitude
m/s
direction
° counterclockwise from the +x axis
(b) What is the amount of mechanical energy lost during...
A 77.0-kg fullback running east with a speed of 5.40 m/s is tackled by a 79.0-kg...
A 77.0-kg fullback running east with a speed of 5.40 m/s is tackled by a 79.0-kg opponent running north with a speed of 3.00 m/s. (a) Explain why the successful tackle constitutes a perfectly inelastic collision. ___________________ (b) Calculate the velocity of the players immediately after the tackle. magnitude=_____ m/s direction=______ ° north of east (c) Determine the mechanical energy that disappears as a result of the collision. _______ J Account for the missing energy. _________________
A 78.5-kg linebacker ("X") is running at 7.19 m/s directly toward the sideline of a football...
A 78.5-kg linebacker ("X") is running at 7.19 m/s directly toward the sideline of a football field. He tackles a 96.9-kg runn8ing back ("O") moving at 9.27 m/s straight toward the goal line, perpendicular to the original direction of the linebacker. As a result of the collision both players momentarily leave the ground and go out-of-bounds at an angle phi relative to the sideline, as shown in the diagrams below. What is the concern speed of the players, immediately after...
On a touchdown attempt, a 95.0 kg running back runs toward the end zone at 3.75 m/s. A 111-kg linebacker moving at 4.10 m/s meets the runner in a head-on collision. If the two players stick together. (a) What kind of collision is it and what quantity is conserved in this problem? (0.5 point) (b) Write down the appropriate conservation equation for the system. (0.5 points) (c) Find the final velocity vf. (both magnitude and direction) (0.5 points) (d) Calculate...
A 1,500 kg car moving with a speed of 4.00 m/s collides with a 50,000 kg truck moving with a speed of 1.80 m/s in the same direction. If the collision is perfectly inelastic, the change in kinetic energy of the car is 12,000 0 -2,600 O-14,600 O -9,390 O none of these Ne Previous A 1,500 kg car moving with a speed of 4.00 m/s collides with a 50,000 kg truck moving with a speed of 1.80 m/s in...
A 190-kg rugby player running east with a speed of 4.00 m/s
tackles a 99.0-kg opponent running north with a speed of 3.90 m/s.
Assume the tackle is a perfectly inelastic collision. (Assume that
the +x axis points towards the east and the +y
axis points towards the north.)
(a) What is the velocity of the players immediately after the
tackle?
magnitude
m/s
direction
° counterclockwise from the +x axis
(b) What is the amount of mechanical energy lost during...
A 78.5-kg linebacker ("X") is running at 7.19 m/s directly toward the sideline of a football field. He tackles a 96.9-kg runn8ing back ("O") moving at 9.27 m/s straight toward the goal line, perpendicular to the original direction of the linebacker. As a result of the collision both players momentarily leave the ground and go out-of-bounds at an angle phi relative to the sideline, as shown in the diagrams below. What is the concern speed of the players, immediately after...
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