A 27.0-kg box is released on a 27 ∘ incline and accelerates down the incline at 0.30 m/s^2 .   Find the friction force impeding its motion. Express your answer to two significant figures and include the appropriate units.

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A ball with mass 0.3 kg is thrown upward with initial velocity 10 m/s from the roof of a building 50 m high. Assume there is a force due to directed opposite to the velocity, air resistance of magnitude 1325 where the velocity v is measured in m/s. NOTE: Use g-9.8 m/s as the acceleration due to gravity. Round your answers to 2 decimal places. a) Find the maximum height above the ground that the ball reaches. Height: m b) Find the time that the ball hits the ground. Time: seconds c) Use a graphing utility to plot the graphs of velocity and position versus time.

An object with a mass of 4kg lies on a rough plane inclined at 20 degrees to horizontal. A force of 35N is applied parallel and up the plane. The object accelerates at 2.5m/s^2. What is the Uk between the object and plane

Modified from the AP College Board Engineers are tasked with designing a new solar system themed roller coaster ride. The track starts at Point P, at the top of a sphere with radius R (representing Jupiter). The track goes down to ground level, then to Point Q, the top of a sphere of radius r (representing Neptune) and then back to the ground level. Ignore air resistance, and assume friction between the cart and the track is negligible Jupiter Radius R Neptune radius r

A 10.1 kg box is released on a 49.9° incline and accelerates down the incline at 0.07 m/s². What is the coefficient of kinetic friction between the two surfaces?

A block slides down a frictionless plane having an inclination of 8- 12.3°. The block starts from rest at the top, and the length of the incline is 1.60 m. (a) Draw a free-body diagram of the block. Choose File No file chosen This answer has not been graded yet (b) Find the acceleration of the block. m/s down the incline (c) Find its speed when it reaches the bottom of the incline. m/s

A 50.0kg object is pushed across a level surface with a diagonal force of 550 N causing it to move forward at a constant velocity of 6.00 m/s. Calculate the coefficient of kinetic friction

At Ted's request, Bill pushes the pizza box across the granite countertop towards Ted. When the box leaves Bill's hand it is sliding at 2.60 m/s. The box comes to rest over a distance of 110 cm. What is the coefficient of kinetic friction, uk, between the pizza box and the countertop? (Ignore air drag.)

A 10N force is applied (pushed down) at a 37 degrees angle onto a Box at rest. The Box then reaches a speed of 30 m/s in 15 seconds along a frictionless surface. What is the mass of the Box in kg?