Calculate the final speed of a 110-kg rugby player who is initially running at 8.00 m/s but collides head-on with a padded goalpost and experiences a backward force of 1.76×104 N for 5.50×10-2 s .

Q: A cue stick strikes a stationary pool ball, with an average force of 32 N over a time of 14 ms. If…

A:

Q: A car (m=1250kg) going 7.0 m/s strikes a resting car (m=900kg) the collide in an inelastic…

A: The expression for inelastic collision is m1v1+m2v2=m1+m2v Rearrange v=m1v1+m2v2m1+m2

Q: A 92-kg fullback moving south with a speed of 5.8 m/s is tackled by a 110-kg lineman running west…

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Q: How much impulse stops a 46-kg carton sliding at 4.0 m/s when it meets a rough surface?

A: Given ,    m= 46 kg    v = 4 m/s

Q: Which has a larger magnitude of momentum: a 3000-kg elephant moving at 40 km/h or a 60-kg cheetah…

A: We know,  Momentum is given as: Given,

Q: A ball of mass 3 kg is travelling to the right at 4m/s when it strikes a secondball of mass 10kg and…

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Q: Calculate the final speed (in m/s) of a 103 kg rugby player who is initially running at 8.50 m/s but…

A: solution as

Q: A barbarian in a canoe throws a 4.46_kg spear at 24.1_m/s. If the barbarian and the canoe together…

A: The mass of the barbarian+canoe M=152 kg The mass of the canoe m=4.46 kg Since all are at rest…

Q: Mitch throws a 113-gram lump of clay at a 696 g target, which is at rest on a horizontal surface.…

A: Let, speed of clay before impact is u and speed of target before impact is 0. Mass of clay mc and…

Q: In a dramatic rescue mission, Dr. Porter was up on a 15-meter-high cliffside where she saw a box of…

A:

Q: A 0.45-kg croquet ball is initially at rest on the grass. When theball is struck by a mallet, the…

A: The expression for average force,

Q: Calculate the final speed (in m/s) of a 100 kg rugby player who is initially running at 7.75 m/s but…

A:

Q: A dog weighing 36 kg, is standing on a flatboat so that he is 23 m from shore. He walks 16 m on the…

A: It is given that,

Q: A stroboscopic photo of a club hitting a golf ball, such as the photo shown in the figure below, was…

A:

Q: A 0.544-kg ball, initially moving with a speed of 2.54 m/s, bounces off a wall and then moves with a…

A:

Q: How much impulse stops a 50-kg carton sliding at 4 m/s when it meets a rough surface?

A:

Q: A stroboscopic photo of a club hitting a golf ball, such as the photo shown in the figure below, was…

A: Given, a stroboscopic photo of a club hitting a golf ball. The ball was initially at rest u = 0 m/s,…

Q: A 100-g ball collides with a wall with an initial speed of 10 m/s, and bounces in the opposite…

A: Given that mass of the ball m = 100 g speed v1 = 10 m/s after collision back speed v2 = -10 m/s…

Q: A 6.065 kg tennis ball moving to the right with a speed 6f 15m/s is struck by a tennis ractet,…

A: The concept used in this question will be that average force(Favg) can be calculated by the rate of…

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 2.50-kg stone is dropped from rest at a height of 3.75 m. What impulse does gravity impart to this…

A: Impulse is the product of the force applied to a body and the amount of time applied. It is given by…

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 0.24–kg volleyball approaches Tina with a velocity of 3.3 m/s. Tina bumps the ball, giving it a…

A: To determine: The average force applied by tina, when the volleyball approaches tina   Given: Mass…

Q: What average force is necessary to stop a 45 caliber bullet of mass 15 grams and a speed of 300 m/s…

A: Given data: Mass of the bullet m = 15g=0.015kg Speed v= 300 m/s Distance s = 5 cm = 0.05 m

Q: What is the speed of a garbage truck that is 1.20×104 kg and is initially moving at 25.0 m/s just…

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Q: 7) A 2.50-kg stone is dropped from rest at a height of 3.75 m. What impulse does gravity impart to…

A: Given,Mass of the stone, m = 2.50 kgheight, h = 3.75 minitial velocity, v = 0 m/s

Q: A body of mass 40 kg has the mom 2000 kgm/s. Calculate; 1. Speed of the body. 2. K.E of the body.

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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: lalhing two boxes of gold and having a mass of 400 Kg altogether has been cut loose from the horses…

A: Momentum before batman and robin jumps= mv =400x20 =8000kg m/s Direction will be same as speed.

Q: Which of the following has the maximum momentum (a) A 100 kg vehicle moving at o.02 ms- (b) A 4 g…

A:

Q: Two ice sleds with masses 3m are placed a short distance apart, one directly behind the other, as…

A: To determine: Final speed of the right sled.

Q: A 3.45 kg black ball traveling 4 m/s has a head on collision with a white one at rest. Using the…

A: Given data: The mass of the black ball is m1=3.45 kg. The initial speed of the black ball is v1=4…

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

A:

Q: A 0.663-kg ball, initially moving with a speed of 3.09 m/s, bounces off a wall and then moves with a…

A:

Q: A truck with a mass of 1600 kg and moving with a speed of 13.5 m/s rear-ends a 585 kg car stopped at…

A:

Q: A ball #1 moving initially with a speed of 5m/s makes an elastic collision with a ball #2 of the…

A:

Q: A 2.00 kg stone is dropped from rest at a height of 4.00 m. What impulse does gravity impart to this…

A: The impulse can be expressed as I=F·Δt=maΔt=mΔv=Δp

Q: 5. A 2.0-kg stone is dropped from rest at a height of 3.75 m. What impulse does gravity impart to…

A: GivenMass of stone, m=2 kgStone is dropped from height, h=3.75 m

Q: A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in…

A: Convert speed in m/s speed in m/s =230 x 0.3048                      = 70.104 m/s

Q: A 4.0 kg dog runs from one end of a 21 kg canoe to the other, a distance of 4.9 m. Assuming…

A:

Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.