Jack is trying to save Jill. Jill is sliding down the mountain at an angle of 24 degrees above the horizontal. Jack tries to slow the cart down by pushing the cart up the slope of the mountain parallel to the inclined surface. The cart has a mass of 50kg, and Jill has a mass of 80kg. The coefficient of friction between the cart and the mountain is 0.14. The cart has 12m before it reaches the edge of the cliff, and is moving at a rate of 15 m/s. Using a gravity value of 10, how much force does Jack need to push on Jill's cart to get it to stop before falling off the cliff?

Q: A 1,982-kg car starts from rest at the top of a driveway 6.74 m long that is sloped at an angle of…

A: Given:  initial velocity, u = 0 m/s  mass, m = 1982 kg  length, s = 6.74 m  Angle, θ = 30 degree…

Q: A 7kg block is placed on an inclined that is 24 degrees to the horizontal. It has a coefficient of…

A: Given:- The mass of the block m = 7 kg  The inclined plane at an angle of 24 degrees to the…

Q: Jackie has a car that accelerates at 8.5 m/s2. If the car has a mass of 2300 kg, how much force does…

A:

Q: You place a crate of mass 36.2 kg on a frictionless 3.53-meter-long incline. You release the crate…

A:

Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…

A: Given- Mass of car , m = 1500 kg Initial speed  of car, u = 15 m/s Final speed of car , v = 0 m/s…

Q: A 1,458-kg car starts from rest at the top of a driveway 6.94 m long that is sloped at an angle of…

A:

Q: A 16 kg block rests on a 29 degree inclined frictionless surface and is attached by a light string…

A: Solution:-Given thatm1=16 kgm2=29 kgg=9.8 m/s2Inclined surface-frictionlesspulley-massless &…

Q: What is the magnitude of the average drag force ?drag exerted on the car?

A: work done by non conservative forces = change in total energy work done by drag force = total final…

Q: You go to the playground and slide down the slide, a 3.0-m-long ramp at an angle of 40° with respect…

A:

Q: A car is moving along a flat, straight road when its driver pushes so hard on the brakes that the…

A: To solve this problem, we can use the principle of conservation of energy, which states that the…

Q: slides? 1. 4.68 m/s^2 2 1.23 m/s^2 3 6.08 m/s^2 4 1.76 m/s^2

A:

Q: A rope exerts a constant horizontal force of 280 N to pull a 50kg crate across the floor. the…

A:

Q: A stone is thrown straight upward with a speed of 25 m/s. It is caught on its way down at a point 5…

A: The vertical displacement of stone is   y=y_0+v_0t-(1/2)gt^2  5=25t-(1/2)(9.80)t^2 5=25t-4.90t^2 On…

Q: A circus gymnast hangs from two ropes attached to the ceiling while lowering himself to the floor at…

A: Given: The angle of the first rope with vertical is 28.3°. The tension in the first rope is 352 N.…

Q: A box is launched up a rough incline with an initial velocity, vo = 6.7 m/s, as in the figure below.…

A:

Q: A 976-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

A:

Q: You are standing on a scale in an elevator. While the elevator is at rest, the scale reads 650 N.…

A:

Q: A 2.0 kg block is sliding on a horizontal surface slides to a halt due to friction of magnitude 5.1…

A:

Q: A woman pushes an initially stationary 11.3 kg gift up a 15.90 ramp a distance of 7.21 m. If she…

A:

Q: A teacup fell was left on the wing of a fighter jet and did not fall until the jet was already very…

A: When object falls with a constant velocity the drag force on it is equal to the gravitational force…

Q: ound.   You are pushing up the ramp with a force of 10N.  Starting from rest, the box uniformly…

A:

Q: A block starting from rest slides a distance of 5 m down an inclined plane which makes an angle of…

A: Given Block slide down at a distance, d=5m inclination angle, θ=370 coefficient of friction between…

Q: A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a…

A:

Q: A 1640-kg car is traveling with a speed of 17.6 m/s. What is the magnitude of the horizontal net…

A: Given data:  Mass (m) = 1640 kgInitial velocity (v0) = 17.6 m/sFinal velocity (v) = 0 m/sDistance…

Q: A person whose weight is 508 N is being pulled up vertically by a rope from the bottom of a cave…

A:

Q: A person whose weight is  516 N is being pulled up vertically by a rope from the bottom of a cave…

A:

Q: A 2.0 kg wood block is launched up a wooden ramp that is inclined at a 30° angle. The block’s…

A:

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.