A 20.0 kg crate, initially at rest, slides down a ramp 2.0 m long and inclined at an angle of 20° with the horizontal. If there is no friction between ramp surface and crate, what is the kinetic energy of the crate at the bottom of the ramp?

Q: A 1.00 m long rod weighing 300 g hangs from the ceiling. For how much does its potential energy…

A:

Q: The gravitational potential energy of a 700kg elevator at the top of a building, 350m above the…

A: Given, mass of elevator is 700 kg Height of building =350 m Gravitational potential energy is given…

Q: How much work must you do to push a 12 kg block of steel across a steel table at a steady speed of…

A:

Q: An 80-N crate slides with constant speed a distance of 5.0 m downward along a rough slope that makes…

A: Data provided :  Weight of the crate(mg) = 80 N, downward  Distance along rough slope = 5 m Angle…

Q: You want to drop a ball of weight 10.0 N into free fall from rest from a certain height above the…

A: The weight of the ball,

Q: In one day, a 75 kg mountain climber ascends from the 1500 m level on a vertical cliff to the top at…

A: Δh1=First day change in height=2400−1500=900 mΔh2=Second day change in height=1350−2400=−1050…

Q: A child of mass m = 23 kg slides down a slide of height h = 2.7 m without friction. Let…

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Q: A hockey puck of mass 0.25 kg is sliding along a slippery lake with an initial speed of 60 m/s. the…

A: Given that Mass m = 0.25 kg Initial speed u = 60 m/s Coefficient of friction μ = 0.030 Final speed V…

Q: S. A 10kg object is raised to a height of 20m. What is the magnitude of its potential energy?…

A: Given data,      Height  =  h       Mass  =   m      Acceleration due to gravity  =  g…

Q: A 100 kg crate slides 10.0 m down a 40 degree incline. The coefficient of friction is 0.20. What is…

A:

Q: "A toy rocket, weighing 10 N, blasts straight up from ground level with a kinetic energy of 40 J. At…

A: GivenWeight of the rocket = 10 kinetic energy of the rocket at ground level, K = 40 Jtotal…

Q: A cheetah can accelerate from rest to 6.4 m/s (about 16 m/h) in 1.2 seconds. How much average power…

A:

Q: a 1.60 m tall person lifts a 1.65 kg book off the ground so it is 2.20 m above the ground. what is…

A: Given Data Height of the person is h=1.60 m Mass of the book is m=1.65 kg Final height of the book…

Q: An 18.4 m brick rests at the top of a ramp that is l = 113 m long and is at an angle θ = 72.2° above…

A:

Q: A block of mass m= 5 kg is pulled along a frictionless horizontal path by a force F = 2 N making an…

A:

Q: The coefficient of kinetic friction between a crate and the floor is 0.50. If the crate has a mass…

A: Given: The coefficient of kinetic friction (μk) between the crate and the floor is 0.50. The mass…

Q: The steps of a flight of stairs are 20.0 cm high (vertically).If a 62.0-kg person stands with both…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A 0.5-kg block, initially at rest, slides down a inclined plane 1.5 m long. The inclined plane…

A: Given, mass of the block is  M = 0.5 Kg Length of incline place is 1.5m. So, Magnitude of…

Q: A 1400 kg car accelerates from 5 m/s to 10 m/s. The net work done by the car is VI V2 500 kJ 200 kJ…

A: Given: The mass (m) of the car is 1400 Kg. The initial velocity (u) of the car is 5 m/s. The final…

Q: A child pulls on a wagon with a force of 75 N. If the wagon moves a total of 30 m in 2.0 min, what…

A: Given , Force = 75 N Displacement s = 30 m Time = 2 minutes

Q: A car of wheat weight 330 kg . To what height should it be raised so that potential energy is 8860 J…

A: Given value--- mass = 330 kg. potential energy = 8860 J. g = 9.8 m/s2.  We have to find---…

Q: If a 70 kg baseball player steals home by sliding into the plate with an initial speed of 10 m/s…

A: mass of player, m = 70 kg  initial speed, u = 10 m/s  final speed, v = 0 m/s

Q: A 34.7 kg child rides a 5.30 kg toboggan down a 13.1 m high snowy hill. If the child starts from…

A: Given,

Q: What is the potential energy of a 15 kg dumbbell sitting on a weight bench 0.65 m above the floor?…

A: Given that, Mass of a dumbbell, m = 15 kg It is placed on a bench 0.65 m above the floor. We need to…

Q: For exercise, an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m at…

A: Given: The weight is 400 N. The height lifted by athelet is 2.2 m. The time interval is 1.6 s.

Q: A car of mass 1500 Kg can accelerate from rest to a speed of 20 m/s in a time of 10 sec. Ignoring…

A: solution is given as

Q: What is the potential energy of an acorn falling out of a tree 20 meters above the ground that has a…

A: Given value--- height = 20 m. weight of acorn = 23.7 N. We have to find--- potential energy?

Q: A 98 kg bicyclist traveling 15 m/s coasts up a 5 m high incline. After reaching the top of the…

A:

Q: How much potential energy does a car gain if a crane lifts the car with a mass of 1,500 kg, 20 m…

A: Given data:  Mass (m) = 1500 kg Height (h) = 20 m Required: Gain in potential energy (U)

Q: A cord is loaded with a brick and is pulled at a constant speed up along an inclined plane 25…

A:

Q: The figure shows a cord attached to a cart that can slide along a frictionless horizontal rail…

A: Change in kinetic energy = ?

Q: A 70.00 kg jumper leaves the ground with a vertical velocity of 5 m/s. b.) What is his max potential…

A: The mass of the jumper is m = 70 kg. The vertical velocity of the jumper is v = 5m/s.

Q: A 5.0-kg block that initially has a speed of 6.0 m/s is moving in a straight line on a level surface…

A: Concept Work done by all forces is equal to change in kinetic energy Since only frictional force is…

Q: An object is thrown vertically upward with an initial kinetic energy of 4000 J from the level where…

A: Given information: The initial Kinetic energy (KE) = 4000 J The initial Potential energy (PE) = 6000…

Q: A cheetah can accelerate from rest to 7.4 m/s (about 17 m/h) in 1.1 seconds. How much average power…

A: The correct choice of answer is option (a) i.e. 1300 W

Q: A bag of wheat weight 320 kg. To what height should it be raised so that potential energy is 8220 J?…

A: Given:  Mass (m) = 320 kg Potential Energy (U) = 8220 J Acceleration due to gravity (g) = 9.8 m/s2…

Q: What is the amount of change in potential energy of the crate?

A: Given m= 60 kg h=1m

Q: A bullet of weight 160 kg To what height should it be raised so that potential energy is 2250 J?…

A: The potential energy of an object of mass M when it is raised to a height h, U = Mgh

Q: A total force of 500 N is applied to pull a box on a rough surface along a distance of 60 m. If…

A: Given : Total force (F) = 500 N Distance (d) = 60 m Work done against friction (Wf) = 1000 J

Q: "A toy rocket, weighing 10 N, blasts straight up from ground level with a kinetic energy of 40 J. At…

A:

Q: A 15.0 kg load of groceries is lifted up from the first floor to the fifth floor of an apartment…

A:

Q: A 172 g box slides up a 17.3* ramp at a speed of 3.55 m/s. Using conservation of energy and assuming…

A: 12mv2=mgh=mglsinθl=v22gsinθ

Q: The figure shows a cord attached to a cart that can slide along a frictionless horizontal rail…

A: Given that :Height of the cord(h)  h=1.2 msides of cord- x1=4.0 m x2=2.0 m Tension in the cord is a…

Q: A 1.60-m-tall person lifts a 1.65-kg book off the ground so it is 2.20 m above the ground. What is…

A: Given data:  Mass (m) = 1.65 kg Height (h) = 2.20 m Required: Potential Energy (U)