indow HelpSon)HideC.smartermarks.comNetflix3. Which of the following best explains why it is safer to land from a height on acushioned landing mat?The mat increases the time of collision and thereby decreases the impulse.The mat decreases the time of collision and thereby increases the impulse.The mat increases the time of collision and thereby decreases the force.The mat decreases the time of collision and thereby increases the force.4.A snowball is thrown with a speed of 42.0 km/h, giving it momentum with amagnitude of 2.00 Ns. The mass of the snowball, in grams, isAnswer to 3 significant digits.g.(Record your answer in the numerical-response section below.)Your answer:0000Use the following information to answer the next two questionsTony is a rock climber. He has a mass of 70.0 kg.5.Tony hangs from a rope at rest, examining the route above. What is the tension inthe rope?0.0 N687 N70.0 N120 N11MacBook AirSmarter Marks :: SittingStudtv 2048 EPIC O EPICGAMESGAMES

When an object is falling from a height it is accelerated by the force of gravity acting on it, and…

Answered: 3. Which of the following best explains…

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In a perfectly ELASTIC collision between two perfectly rigid objects... the momentum of each object is conserved. the momentum of the system is conserved but the kinetic energy of the system is not conserved. O both the momentum and the kinetic energy of the system are conserved. the kinetic energy of each object is conserved. O the kinetic energy of the system is conserved, but the momentum of the system is not conserved. OLO 8:42 PH 11/6/2022
6. An astronaut in space becomes unteathered from her space craft while tightening bolts on a satellite, and she knows that the conservation of momentum is her only hope to safely get back to her ship. She turns her back to the ship and throws her 3.2-kg wrench in the direction pointing away from the ship. If the astronaut and her space suit have a combined mass of 120 kg and she is able to throw the wrench with a speed of 1.7 m/s, how fast will she move toward the space craft? Hint: you can assume that the astronaut is initially at rest relative to the space craft.
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I. A lump of clay (m = 3.00 kg) is thrown towards a wall at speed v = 3.00 m/s. The lump sticks to the wall. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision. II. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 3.00 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision. III. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 2.00 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during…
1. A lump of clay (m = 3.00 kg) is thrown towards a wall at speed v = 3.00 m/s. The lump sticks to the wall. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wallI. (c) Calculate percent of initial kinetic energy lost during this collision. II. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 3.00 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision. III. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 2.00 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost…
2. Two balls (A) and (B) have an elastic collision. Before the collision, the kinetic energies of balls (A) and (B) are 27.5 J and 7.00 J, respectively. After the collision, ball (A) has a kinetic energy of 9.50 J and ball (B) has a speed of 4.60 m/s. What is the mass of ball (B)?
9. An athlete who is initially at rest in a squatted position jumps vertically upward and then lands going back to the original squatted position (ending at rest with the same center of mass height as at the start). The time period under consideration begins just before the athlete starts the upward motion and ends just after she has landed and comes to rest back in the squatted position. Compare the magnitude and directions of the impulse from the force of the ground on the athlete to the impulse from gravity on the athlete during this time period. Note: there are no other significant forces other than the ground and gravity acting on the athlete during this time period. of