8. (II) Estimate the average force exerted by a sho a 7.0-kg shot if the shot is moved through a 2.8 m and is released with a speed of 13 m/s.

Q: In the figure, a runaway truck with failed brakes is moving downgrade at 128 km/h just before the…

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Q: A test crash car (m = 1750 kg) traveling at 9 m/s crashes into a wall. The car travels 7 meters into…

A: Given :    Mass of the test crash car, m = 1750 kg    Initial velocity, u = 9 m/s    Final velocity,…

Q: 1.A player passes a 0.600-kg basketball downcourt for a fastbreak. The ball leaves the player’s…

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Q: A car's bumper is designed to withstand a 4.68-km/h (1.3-m/s) collision with an immovable object…

A: Average force from Work done W=FavgdFavg=Wd=∆Ekd=12mv2f-v2id=12910 kg0-1.3 ms20.285 mFavg=2698 N

Q: - A 120 kg skydiver (with parachute) falls from a hot air balloon, with no initial velocity, 1000m…

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Q: What average net force is required to bring 1000[kg] car to rest from a speed of 4.0[m/s] within a…

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Q: Water leaves a hose at a rate of 2.8-kg per 2.1-s with a speed of 15.9-m/s and is aimed at a toy car…

A: Given,               mass, m =  2.8 kg               time, t = 2.1 s               final velocity,…

Q: A baseball (m=145g) traveling 33 m/s moves a fielder's glove backward 27 cm when the ball is caught.…

A: Given: In this question, the given values are, The given mass of the baseball is m=145 g, And the…

Q: 9. A skater pushes on the back of a 45.3 kg sled with an average force of 72.5 N over a distance of…

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Q: 1) A 1.7x10³ slug bullet moving at 672 mph passes through a 1% inch thick sheet of foam plastic and…

A: Mass of slug bullet (m)=1.7×10-3kg Initial Velocity of bullet u=672mph=1081.45 kmh=300 m/s Velocity…

Q: A car's bumper is designed to withstand a 5.76-km/h (1.6-m/s) collision with an immovable object…

A: Given:- mass(m)=890 kg distance (d)= 0.300 m velocity (vi)=1.6 m/s velocity (vf)=0 m/s Find the…

Q: A car’s bumper is designed to withstand a 12.53 m/s collision with an immovable object without…

A: Data Given ,  Initial speed of the car ( Vi ) = 12.53 m/s Final speed of the car ( Vf ) = 0 m/s Mass…

Q: Determine the force required to stop a 988-kg car moving at a speed of 21.2 n there is a distance of…

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Q: A 2.0-g bullet leaves the barrel of a gun at a speed of 300 m/s. (a) Find its kinetic energy. (b)…

A: Mass of bullet , m = 2 g = 2 x 10-3 kg  Speed of the bullet , v = 300 m/s Length of the barrel , d =…

Q: In a railroad yard a 35,000 kg boxcar moving at 7.2 m/s is stopped by a spring-loaded bumper mounted…

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Q: A car's bumper is designed to withstand a 6.48-km/h (1.8-m/s) collision with an immovable object…

A: Given data: Initial speed of car, u=1.8 m/s Mass of the car, m=910 kg Collapsing distance, S=0.225 m…

Q: A car's bumper is designed to withstand a 5.76-km/h (1.6-m/s) collision with an immovable object…

A:

Q: Water leaves a hose at a rate of 2.2-kg per 3.0-s with a speed of 20.9-m/s and is aimed at a toy car…

A: According to question we need to find--- What is the force exerted by the water on the toy car?

Q: 1) A 0.3kg ball is dropped from hague of 3.6 meters hits height of 2.5 meters. Using positive for…

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Q: A player passes a 0.600-kg basketball downcourt for a fast break. The ball leaves the player’s hands…

A:

Q: 3. A 75kg basketball player generates an average vertical ground reaction force of 1697N over a 0.45…

A: Mass of the basketball player m=75 Kg Reaction force F=1697 N Time t=0.45 second

Q: A car going 13 m/s is brought to rest in a distance of 3 m as it strikes a pile of dirt. How large…

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Q: A car's bumper is designed to withstand a 5.40-km/h (1.5-m/s) collision with an immovable object…

A: Given data-    Initial speed of the car Final speed of the car Mass of the car Distance covered by…

Q: A car’s bumper is designed to withstand a 4.0-km/h (1.1-m/s) collision with an immovable object…

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Q: Calculate the final velocity right after a 114 kg rugby player who is initially running at 7.25 m/s…

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Q: A Mans spnug system is relkased at セ=g d has a m AXim um compreslon The mass Moves from the position…

A: Given: The maximum compression in spring is 2 m.             The spring constant is 100 N/m. To…

Q: (II) During a Chicago storm, winds can whip horizontally at speeds of 100 km/h. If the air strikes a…

A:

Q: (!) THE FOLLOWING QUESTIONS ARE BASED ON THE INFORMATION GIVEN BELOW. The lift of an observatory…

A: Force brings about motion and changes in motion. Object under free fall is subjected to gravity of…

Q: In the figure, a runaway truck with failed brakes is moving downgrade at 109 km/h just before the…

A:

Q: A car is moving at 50.0km/hr. it’s mass is 1500kg. if it is to reduce its speed by 50% over 100.0m…

A: Given data The initial speed is u=50 km/h=13.89 m/s The speed is reduced by n=0.50 The distance…

Q: A car's bumper is designed to withstand a 5.04-km/h (1.4-m/s) collision with an immovable object…

A:

Q: A car's bumper is designed to withstand a 7.20-km/h (2.0-m/s) collision with an immovable object…

A: Given: The mass of the car is m = 840 kg The initial speed of the car is vi = 2 m/s The bumper…

Q: Driving home from school one day, you spot a ball rolling out into the street (see the figure…

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Q: After an elastic collision of two balls, the kinetic energies of the two balls are measured to be 12…

A: In elastic collisions, both kinetic energy and the momentum of the system is conserved. According to…

Q: Driving home from school one day, you spot a ball rolling out into the street (see the figure…

A: Given:Initial velocity, u=16.0 m/s Final velocity, v=9.5 m/s Time interval , t=1.5 s To determine…

Q: A force of magnitude 5N acts on a 2 kg. body moving initially in the direction of the force with a…

A: The work-energy theorem states that the total work done by all the forces acting on a particle is…

Q: (11) Block 1 has a mass of 4.95 kg and block 2 has a mass of 5.58 kg. Block 2 is released from rest…

A:

Q: A ball going 20 m/s bounces off a wall at a velocity of -12 m/s and goes the opposite direction. If…

A: Answer: Given data, Initial velocity of ball (u)=20m/s Final velocity after bounce back (v)=-12 m/s…

Q: Water leaves a hose at a rate of 3.6-kg per 2.5-s with a speed of 20.5-m/s and is aimed at a toy car…

A: Given Initial velocity is v0= 20.5 m/s Final velocity is v=3.1 m/s Time taken is t=2.5 s Mass is…

Q: 39. (II) A vertical spring (ignore its mass), whose spring con- stant is 875 N/m, is attached to a…

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Q: A1 275.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into…

A: Momentum of an object is defined as the product of it's mass and velocity , that is , p=mv .…

Q: Bumpers on cars are not of much use in any collision. To see why, calculate the average force a…

A: Given Data Mass of the car is m=1100 kg Initial speed of the car is vi=4.5 m/s Final speed of the…

Q: how long does it take a 2500 kg car to slow down from 15 m/s if it strikes a wall with a force of…

A: Initial speed, u = 15 m/s Final speed, v= -15 m/s (Speed is reversed for elastic collision) Force, F…