I kg is initially A wedge of mass driven up a frictionless ramp by a horizontal force F = 50 N due to a small attached rocket. The ramp is equilateral, with sides of length 50 m. 1 kg 50 N 50 m (a) What is the magnitude of the normal force exerted by the ramp on the wedge? (b) What is the speed v, of the wedge as it leaves the 50 m

A fish of mass 1kg is lying still on an inclined plane at 3o degrees above the horizontal. the magnitude of the normal force exerted by the plane on the fish is.  0N 9.8N 8.5 N 4.9N

A 2.0- kg box is moving at constant speed of 2.0m/s on a frictionless horizontal floor. You apply a horizontal force with a magnitude of 4.0N to make it stop. How long should you apply this force?

MY NOTES ASK YOUR TEACHER Disturbed by speeding cars outside his workplace, Nobel laureate Arthur Holly Compton designed a speed bump (called the "Holly hump") and had it installed. Suppose a 1800-kg car passes over a hump in a roadway that follows the arc of a circle of radius 20.6 m as in the figure below. (a) If the car travels at 22.0 km/h what force does the road exert on the car as the car passes the highest point of the hump? magnitude N. direction --Select-v (b) What is the maximum speed the car can have without losing contact with the road as it passes this highest point? km/h

A hockey puck with mass 0.166 kg is pushed across the ice with a constant force of 0.89 N. The coefficient of kinetic friction between the puck and the ice is 0.22. After a distance of 2.6 m, what is the puck's speed in m/s?

A statue is crated and moved for cleaning. The mass mm of the statue and crate is 150kg150kg. As the statue slides down a ramp inclined at an angle θ=40∘θ=40∘, the curator pushes up, parallel to the ramp's surface, so that the crate does not accelerate. The statue slides a distance d=4.0m d=4.0m down the ramp, as shown in the figure, and the coefficient of kinetic friction μkμk between the crate and the ramp is 0.580.58. Assume that the positive direction is down the ramp. a) Calculate the work WgravWgrav done by the gravitational force. (b) Calculate the work WfrictionWfriction done by the friction force. (c) Calculate the work WcuratorWcurator done by the curator. (d) Calculate the work WnormalWnormal done by the normal force.

An applied force of 44 N directed at an angle of -18.3 degrees with respect to the +x direction acts on a 2.89 kg mass that is initially at rest while on a horizontal surface. In moving a distance of 2.96 m in the +x direction, the object changes its kinetic energy by 30.2 J. What is the coefficient of kinetic friction?

If a 2.1 kg object is initially at rest on a frictionless, horizontal surface and subjected to a 13.7 N force in the positive x-direction over a distance of 3.49 meters, what will the object's final speed be? Assume the answer in in m/s.

F(x) A 8kg block initially at rest is acted on by the force shown at an angle of 0 = 20'. The magnitude of this force changes as the block 4. moves: F(x) = (7.5 N/m)x. The coefficient of kinetic friction between the floor and the box is µ = 0.2. Determine the speed of the block after the block has moved 5.0m.

A box weighing 3.9 kg is initially at rest on a horizontal floor. It is then pushed in a straight line for 1.2 m by a girl exerting a horizontal force with a magnitude 36 N. What is the final speed of the box if there if no friction between the floor and the box? What is the final speed if a coeffient 0.30 would be introduced between the floor and the box?