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- A 70.0 kg ice hockey goalie, originally at rest, has a 0.280 kg hockey puck slapped at him at a velocity of 45.5 m/s. Suppose the goalie and the puck have an elastic collision, and the puck is reflected back in the direction from which it came. What would the final velocities Ugoalie and Upuck of the goalie and the puck, respectively, be in this case? Assume that the collision is completely elastic. Ugoalie = Upuck = Question Credit: OpenStax College Physics m/s m/sA knife thrower throws a knife toward a 300 g target that is sliding in her direction at a speed of 2.30 m/s on a horizontal frictionless surface. She throws a 22.5 g knife at the target with a speed of 38.0 m/s. The target is stopped by the impact and the knife passes through the target. Determine the speed of the knife (in m/s) after passing through the target.Consider a 935 kg car initially moving at 30.5 m/s. a) what is the velocity of the car, in meters per second, just after it hits a 140-kg deer initially running at 12.5 m/s in the same direction? Assume the deer remains on the car.
- INITIAL: FINAL: M. A white billiard ball with mass mw = 1.53 kg is moving directly to the right with a speed of v = 3.25 m/s and collides elastically with a black billiard ball with the same mass mb = 1.53 kg that is initially at rest. The two collide elastically and the white ball ends up moving at an angle above the horizontal of ew = 51° and the black ball ends up moving at an angle below the horizontal of Ob = 39°. %3D 1) What is the final speed of the white ball? m/s Submit 2) What is the final speed of the black ball? m/s SubmitA 70.0 kg ice hockey goalie, originally at rest, has a 0.280 kg hockey puck slapped at him at a velocity of 41.5 m/s. Suppose the goalie and the puck have an elastic collision, and the puck is reflected back in the direction from which it came. What would the final velocities of the goalie and the puck, respectively, be in this case? Assume that the collision is Ugoalie and Upuck completely elastic. Ugoalie Upuck= 0.14 Incorrect -5.38 Incorrect m/s m/sYou put an antimatter explosive in a 133 kg space rock, initially moving to the right at 34 m/s. This time, upon detonation, the rock fractures into three pieces. A 16 kg chunk is observed to zip off to the right (the positive direction) at 60 m/s. A 69 kg chunk is observed to zip off to the left at 59 m/s. Calculate the final velocity of the third chunk, in m/s. (Please answer to the fourth decimal place - i.e 14.3225)
- An angry rhino with a mass of 3200 kg charges directly toward you with a speed of 3.50 m/s. Before you start running, as a distraction, you throw a 0.180 kg rubber ball directly at the rhino with a speed of 6.51 m/s. Determine the speed of the ball (in m/s) after it bounces back elastically toward you. ?m/sA 65.0 kg ice hockey goalie, originally at rest, catches a 0.150 kg hockey puck slapped at him at a velocity of 28.0 m/s. Suppose the goalie and the ice puck have an elastic collision and the puck is reflected back in the direction from which it came. What would their final velocities (in m/s) be in this case? (Assume the original direction of the ice puck toward the goalie is in the positive direction. Indicate the direction with the sign of your answer.) puck m/s goalie m/sA 50 kg50 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 30 m/s. (a) If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic? (b) If the ball is in contact with the player's head for 21 m/s, what is the average acceleration of the ball? (Note that the force of gravity may be ignored during the brief collision time.)
- A 180-g golf club is moving at 35.0 m/s when it strikes a 50.0-g golf ball and sends it off at 45.0 m/s. A) Determine the speed of the club after the collision. B) If the impact lasted for 5.00 ms, determine the average force exerted on the ball by the club.A young 44-kg ice hockey goalie, originally at rest, deflects a 0.145-kg hockey puck slapped at him at a speed of 37 m/s. In this problem, take the original direction of the puck as positive. Suppose the goalie and the ice puck have an elastic collision and the puck is reflected back in the direction from which it came. What would the final velocity of the puck, in meters per second, be in this case? Suppose the goalie and the ice puck have an elastic collision and the puck is reflected back in the direction from which it came. What would the final velocity, in meters per second, of the goalie be in this case?