Give at least 2 reasons why in collision between
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Q: Imagine that you drop a brick on the ground and it lands witha thud. Apparently the energy of this…
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- Answer question 7A red 150 g toy car slides down a 40 degree frictionless ramp. At the bottom, just at it exists onto a horizontal part of the slide, it collides with a purple 400 g car at rest. How high should you make the water slide so that the red toy car gives the purple car a speed of 300 cm/s?Physical science please simplify A bullet with a mass of 24 g is fired at an enemy soldier at 750 m/s. After traveling 450 m, the bullet has lost 26% of its velocity to air resistance. How much kinetic energy has the bullet lost?
- Q8/ Two locomotives at opposite ends of a 7-km-long track, fired them up, tied their throttles open, and then allowed them to crash head-on at full speed. Assuming each locomotive weighed 2 x 10° N and its acceleration was a constant 0.2 m/s, what was the total kinetic energy of the two locomotives just before the collision?Doing some physics homework and am kind of stumped here!A volleyball player starts a serve by throwing the ball vertically upward. The 240g volleyball comes to rest at its maximum height. The server then hits it and exerts an average horizontal force of magnitude 6.2 N on the ball. Determine the speed of the ball after the player hits it if the average force is exerted on the ball for 600 ms.
- A 4 kg block moving right at 6 m/s collides elastically with a 2 kg block moving right at 3 m/s. Calculate the final kinetic energy. What is the velocity of a 10 kg object move if an average power of 120 watts is used and the applied force is parallel to the surface? 1.22 m/s 12.2 m/s 0.82 m/s 102 m/s 82 m/sHomework question, all work must be shown thanksYou push a box of mass 21.4 kg with your car up to an icy hill slope of irregular shape to a height 5.1 m. The box has a speed 13.3 m/s when it starts up the hill, the same time that you brake. It then rises up to the top (with no friction) to a flat area before elastically colliding with a smaller box of mass 14 kg. The boxes then fall off a sheer cliff individually to the ground (with no drag). (a) How far from the cliff does the heavier box hit the ground? (b) What is the direction of motion of the heavier box as it hits the ground? = ŷ + 2 (c) How far from the cliff does the lighter box hit the ground? (d) What is the direction of motion of the lighter box as it hits the ground? W = ŷ + 2
- Galileo does an experiment. He goes to the top of the leaning tower of pisa and drops a concrete ball and a wooden ball of equal size.The concrete ball has twice the mass of the wooden ball. How do the kinetic energies of the balls compare as they reach the ground? a) The wooden one has four times as much kinetic energy as the other does. b) The wooden one has twice as much kinetic energy as the other does. c) The wooden one has the same kinetic energy as the other does. O d) The wooden one has one fourth as much kinetic energy as the other does. O e) The wooden one has one half as much kinetic energy as the other does. (A 0.015-kg bullet is fired into a stationary block of wood of mass of 5.2 kg. The relative speed of the bullet with respect to the wood is zero after collision (The bullet becomes embedded on the block of wood). If the speed of the bullet before collision is 462 m/s, what is the kinetic energy of the bullet plus-wood combination right after the collision? Assume no change in the potential energy of the system before and after the collision. Express your answer in two decimal places, in Joules.