A 0.145- kg baseball with an initial speed of 23 m/s rebounds with a speed of 36 m/s after being struck with a bat. If the duration of contact between ball and bat was 2.8 ms, what was the magnitude of the average force between ball and bat?

Q: A 3650-kg open railroad car coasts at a constant speed of 9.00 m/s on a level track. Snow begins to…

A:

Q: A boy of mass 45 kg stands on one end of a boat of mass 800 kg and length 4.5 m. The boat  moves at…

A:

Q: A 65.8-kg person throws a 0.0441 kg snowball forward with a ground speed of 32.5 m/s. A second…

A:

Q: A 50 kg skater is travelling due East at a speed of 3 m/s. A 70 kg skater is moving due South at 7…

A: the problem is based upon the law of conservation of momentum. According to law of conservation of…

Q: A billiard ball strikes the bumper of a pool table and bounces straight back. The billiard ball's…

A:

Q: If a 1780 kg train car on a one dimensional track, moving at 5 m/s north, hits and bounces off a…

A:

Q: A 70.0-g bullet moving at a 345.0 m/s passes through a 5.30 cm thick sheet of foam plastic and…

A: Given,  Mass of bullet = 70g Initial speed = 345 m/s Final speed = 80m/s Thickness of sheet = 5.3cm…

Q: A 85.4-kg boy and a 62.3-kg girl, both wearing skates face each other at rest on a skating rink. The…

A: Mass of Boy (M)=85.4 kgMass of Girl (m)=62.3 kginitially both are at rest velocity of girl when boy…

Q: A 1.5 kg ball is coming straight at a 80 kg soccer player at 15 m/s who kicks it in the exact…

A:

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

A: Given Information:- Mass of the steel ball is m=3.00 kg Initial speed of the ball is v=10.0 m/s…

Q: by an 89-kg linebacker traveling with an initial speed of 5.2 m/s. As the two players move together…

A: Given:- A initial velocity of the quarterback is u1 = 0 m/s  A initial velocity of the linebacker is…

Q: One hazard of space travel is debris left by previous missions. There are several thousand objects…

A: Given data:  Mass (m) =  0.11 mg = 0.11×10-6 kg Relative speed (Δv) = 3.4×103 m/s Time interval (Δt)…

Q: 0.145-kg baseball pitched at 38.0 m/s is hit on a horizontal line drive straight back at the pitcher…

A:

Q: Suppose a gangster sprays Superman’s chest with 3 g bullets at the rate of 100 bullets/min, and the…

A: According to the conservation of momentum. Force is equal to the Rate of change of momentum,…

Q: Suppose a clay disc has a mass of .249 kg and slides on ice at a speed of .510 m/s. It runs into…

A: Given:mass , m1 = 0.249 kginitial velocity, u1 = 0.510 m/smass, m2 = 0.392;kg initial velocity of…

Q: A boy shoots his pellet gun at a piece of cheese that sits, keeping cool for dinner guests, on a…

A: Muzzle velocity = 64 m/sec   Velocity of bullet just before hitting the cheese = 64 m/sec   Momentum…

Q: A 4-oz baseball is pitched with a velocity of 80 ft/s toward a batter. After the ball is hit by the…

A:

Q: 10. A golfer strikes a golf ball of mass 0.050 kg, and the time of impact between the golf club and…

A: Given data:  Mass (m) = 0.050 kg Time interval (Δt) = 1.0 ms = 1.0×10-3 s Initial velocity (Vi) = 0…

Q: The head of a hammer (m= 1.1 kg) moving at 6m/s strikes a nail and bounces back with the same speed…

A:

Q: Wednesday drives a 1.70×103-kg in a westward direction at 15.0 m/s. Unfortunately, she collides with…

A: Given Initial velocity of Wednesday uw = 15.0 m/s west Initial velocity of Friday uf = 10.0 m/s…

Q: 12. A golfer drives a ball from its tee. The speed of the ball is 30 ms-1. The mass of the ball is…

A: Given: The speed of the ball is v=30 m/s. The mass of the ball is m=50 g. The contact time between…

Q: A 40.0-kg boy, riding a 2.50-kg skateboard at a velocity of +5.30 m/s across a level sidewalk, jumps…

A: In the above problem, the skateboard and the boy considered to be a single system are moving…

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

A: Given: The mass of the puck: m=0.170 kg The initial velocity of the puck: vi=+69.1 m/s

Q: A basketball player drops a 0.5 kg basketball vertically so that it is traveling at 5.0 m/s when it…

A: A ball hits the ground and rebounds. We need to calculate the change in momentum and the average…

Q: A 35 g tennis ball approaches a player horizontally at a speed of 7.0 m/s. The player hits the ball…

A:

Q: A 0.0450-kg golf ball initially at rest is given a speed of 25.0 m/s when a club strikes. If the…

A: The golf ball has a mass of 0.045 kg. Let m=0.045 kg. As given, the golf ball was initially at rest,…

Q: A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball…

A: Given:-  The mass of the ball is m = 275 g  and the ball drop from the rest  The velocity of the…

Q: A 3.00-kg steel ball strikes a wall with a speed of 10.0m/s at an angle of 60.00 with the surface.…

A:

Q: A soccer player hits a 0.20 kg ball which is incoming with a speed 5m/s. After the kick, the ball…

A:

Q: A 2670 kg truck jumps the median and clobbers a 630 kg station Wagon in a head on collision. You are…

A: Given that:- Mass of truck=2670 kg  Mass of station wagon=630 kg

Q: A flying squid (family Ommastrephidae) is able to "jump" off the surface of the sea by taking water…

A: Mass of the squid (M)=0.70 kg Mass of water ejected by the squid (m)=0.29 kg Speed of water ejected…

Q: During a storm, rain comes straight down at a rate of 46.8 kph and perpendicularly hits the roof of…

A:

Q: There is a 1D elastic collision between a box of 5 kg and a ball of 5 kg. Before the collision, the…

A: Conservation of momentum: It states that “the total momentum of a system remains conserved or…

Q: A 49.0-kg boy, riding a 2.40-kg skateboard at a velocity of 5.60 m/s across a level sidewalk, jumps…

A: (given) Mass of boy = 49 kg Mass of skateboard = 2.40 kg Momentum of skateboard is  Pboard=2.40 kg…

Q: A soccer goalkeeper is standing in front of his side goal-post. An opposite side player shoots the…

A:

Q: A 55 g tennis ball approaches a player horizontally at a speed of 8.0 m/s. The player hits the ball…

A:

Q: are in a contact for only 1.80 s. Calculate the average force that the club has exerted on the ball.

A: Force = rate of change of momentum

Q: A 1050 kg sports car is moving westbound at 15.0 m/s on a level road when it collides with a 6320 kg…

A: a. Let east be the x direction. According to the conservation of momentum, m1v1+m2v2=m1+m2v

Q: a 8 kg bowling ball, moving at 10 m/s to the right, hits and bounces off a second bowling ball with…

A: given that, mass of ball moving right (m1) = 8kg mass of ball moving left(m2) = 5kg  Initial…