Suppose a gangster sprays Superman’s chest with 3 g bullets at the rate of 100 bullets/min, and the speed of each bullet is 500 m/s. Suppose too that the bullets rebound straight back with no change in speed. What is the magnitude of the average force on Superman’s chest?

Q: A 25 kg crate is released at the top of a ramp tilted at 40 degrees above the horizontal if the…

A: Given : mass of crate, m = 25 kg Coefficient of kinetic friction, μk = 0.3 Angle of inclination =…

Q: 7 kg steel ball strikes a wall with a speed of 11 m/s at an angle of 41.4 ◦ with the normal to the…

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Q: A hockey goalie is standing on ice. Another player fires a puck (m = 0.170 kg) at the goalie with a…

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Q: A 200 g ball is dropped from a height of 2.0 m, bounces on the floor, and rebounds to a height of…

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Q: a 3000 kg truck is driving at 20 m/s north. it collides head-in with a 1200 kg car travelling south…

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Q: In a particular crash test, a car of mass 1500 kg collides with a wall, as shown in the Figure. The…

A: The Impulse-momentum theorem is defined as the change in the momentum of an object.  Impulse , J =…

Q: A 75-kg fisherman in a 125-kg boat throws a package of mass m = 15 kg horizontally toward the right…

A: Apply conservation of momentum to boat fisherman-package system,

Q: A 0.576-kg ball, initially moving with a speed of 2.93 m/s, bounces off a wall and then moves with a…

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Q: We commonly see Superman being shot and bullets bounce off of him.  Suppose Mr. Bad shoots Superman…

A: Given values: Mass of each bullets, m=4.00 kg Rate of bullets, r=100 bullets/min Time, t=5.00 s…

Q: In the figure, block 1 of mass m, slides from rest along a frictionless ramp from height h = 2.6 m…

A: First find velocity of block 1 at bottom. Then by applying conservation of momentum and using…

Q: 6. A glider of mass m1 = 5 kg has a velocity vli = +4 ms-1 before colliding with a second glider of…

A: Given Mass of first glider m1 = 5kg Mass of second glider m2= 15kg velocity of 1st glider v1=4m/s

Q: In the figure, block 1 of mass m, slides from rest along a frictionless ramp from height h= 3.2 m…

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Q: A batter hits a 0.334 kg basball that was approaching him at 23.4 m/s and, as a result, the ball…

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Q: Interactive LearningWare 7.1 reviews the approach that is necessary for solving problems such as…

A: NOTE: As per guidelines, I can solve the first question. If you need help with other question,…

Q: A 2000-kg railway freight car coasts at 4.4 m/s underneath a grain terminal, which dumps grain…

A: Given: A 2000-kg railway freight car coasts at 4.4 m/s underneath a grain terminal, which dumps…

Q: A completely inelastic collision occurs between two balls of wet putty that move directly toward…

A: From the conservation of momentum.

Q: Block 1 with a mass of 1.0 kg slides down a frictionless ramp with a height of 3.0 m and collides…

A: Mass of block 1 (M1) = 1.0 kg Height (H) = 3.0 m Mass of block 2 (M2) = 2.0 kg Friction coefficient…

Q: An open railroad car of mass 15,000 kg is coasting with a speed of 25 m/s. It rains really hard for…

A: Given data: The mass of the open railroad car is M=15000 kg. The initial speed of the railroad car…

Q: A high-speed photograph of a club hitting a ball. the club was in contact with a ball, initially at…

A: Given data: Mass of ball (m) = 55 g = 0.055 kg Time interval (Δt) = 0.0054 s Initial velocity (v0) =…

Q: A completely inelastic collision occurs between two balls of wet putty that move directly toward…

A: Given:  mass of first ball, m = 3 kg  initial velocity of first ball, u = 20 m/s  mass of second…

Q: A bullet of mass mm is fired into a block of mass MM that is at rest. The block, with the bullet…

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Q: Two blocks of mass 3kg and 2kg are moving toward eachother along a horizontal frictionless surface…

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Q: A 0.543-kg ball, initially moving with a speed of 2.67 m/s, bounces off a wall and then moves with a…

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Q: 107.5-kg rugby player is initially running at 8.5 m/s in the positive direction, but collides…

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Q: A cube M=3.00 kg slides down a frictionless incline as shown in the figure, and elastically strikes…

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Q: A 874 g rubber ball was vertically pushed downward at 1.18 m/s from a height of 88.5 cm above a…

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Q: As shown in the figure below, two blocks (m1 and m2) are each released from rest at a height of h =…

A: Dear student For a system where there is no external force acting, the energy and momentum remains…

Q: Two billiard balls of equal mass undergo a perfectly elastic head - on collision. If the speed of…

A: In plastic perfectly elastic collision momentum and kinetic energy of system remains constant.…

Q: 2. A 1.2-kg object moving with a speed of 8.0 m/s collides perpendicularly with a wall and emerges…

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Q: A 3.00-kg steel ball strikes a wall with a speed 10.0 m/s at an angle of 60.0° with the surface. It…

A: We have a ball of mass m=3 kg travelling with velocity u=10 m/s which hits a wall at 60o. After…

Q: In the figure, block 1 of mass m, slides from rest along a frictionless ramp from height h = 3.3 m…

A: Giventwo blocks of mass m1 and m2 a shown in given figure m2=3 m1 h=3.3 mμk=0.35

Q: At the local radio controlled (RC) airfield, a 2.4 kg RC plane strikes a 1.2 kg aerial drone that is…

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Q: A ball (a) approaches two stationary balls (b and c) with a velocity vai=11.5m/s. It collided with…

A: It is given that, vai=11.5 m/svbi=0vci=0mc=10.9 kgvcf=11.5 m/s

Q: A 3.50-kg steel ball strikes a wall with a speed of 9.0 m/s at an angle of e = 60.0° with the…

A: When the ball strikes the wall, the momentum changes and the momentum is conserved and change in…

Q: A 4.10-kg steel ball strikes a wall with a speed of 11.0 m/s at an angle of ? = 60.0° with the…

A: Given, Mass   of the ball(m) = 4.10kg Speed of the ball(u)= 11.0m/s Contact time (t) = 0.200s Angle…

Q: 4.50-kg steel ball strikes a wall with a speed of 13.0 m/s at an angle of ? = 60.0° with the…

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Q: In the figure, block 1 of mass m, slides from rest along a frictionless ramp from height h = 2.5 m…

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Q: Two cars collide into each other and start to move together. If their speeds before the collision…

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Q: A 105-kg rugby player is initially running at 7.5 m/s in the positive direction, but collides…

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Q: 4 A glider of mass mi = 8 kg has a velocity vli = +2 ms second glider of mass m2 = 4 kg, moving with…

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Q: In the figure, block 1 of mass m; slides from rest along a frictionless ramp from height h-3.1 m and…

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Q: In the figure, block 1 of mass m1 slides from rest along a frictionless ramp from height h = 2 m and…

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Q: three  200-g objects have velocities given by v1=15.0j m/s, v2=6.7i-3.45j m/s, and v3= -6.7j - 4.32j…

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Q: Question 6.1a: A toy car having mass m = 1.05 kg collides inelastically with a toy train of mass M =…

A: In an inelastic collision, the momentum is conserved and not the energy.(a) Using the conservation…