You pull a 65kg box up a frictionless ramp at an angle of 15o with a rope that is parallel to the incline and with a tension equal to 250N. What is the box's acceleration up the ramp?

A girl weighing 45kg is standing on the floor, exerting a downward force of 200N on the floor. The force exerted on her by the floor is

From a standstill, a 77.0 kg basketball player bends their knees and pushes against the floor andextends legs vertically 30.0 cm before jumping vertically off the ground and reaches a maximumheight of 25.0 inches above the ground. Assume the force the floor exerts on the player is constant.What is the force the floor exerts on the player? Give answer in lbs. (Let 4.45 N = 1 lb., 1 inch = 2.54 cm)

A 1,300kg car is traveling at a velocity of 30.0m/s when the driver slams on the brakes. If a constant force of kinetic friction of magnitude 9,200N acts on the car, how far does the car travel when it comes to a stop

A ball with mass 0.85 kg is thrown upward with initial velocity 30 m/s from the roof of a building 40 m high. Assume there is a force due to v² 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/s² 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.

This problem has been removed by your teacher and will not affect your score. A 75kg bicyclist (including the bicycle) is pedaling uphill with a speed increasing at a rate of 1.7m/s?. The bicyclist is also experiencing a 20N drag. Neglect any friction impeding her motion. How many forces are acting on the bicyclist? Are all forces on the bicyclist balanced? What is the magnitude of the net force on the bicyclist? unit 13° What is the magnitude of the normal force on the biyclist? unit How much force is she generating by pedaling? unit cam be d check answers

answer in 20 mins!!!

A light spring having a force constant of 125N/m is used to pull a 7.20kg sled on a horizontal ice rink. The coefficient of kinetic friction between the sled and the ice is 0.200. The sled has an acceleration of 1.80m/s^2.  By how much does the spring stretch if it pulls on the sled horizontallly?   If the string stretches by the same amount but is pulling the sled at 30 degrees above the horizontal, what is the new acceleration?

Supposed a 52.5kg gymnast is climbing a rope. What is the tension in the rope, in newtons, if he climbs at a constant speed?

An 80 kg skier sliding across a flat smooth ice surface at 20 m/s reaches a flat muddy surface with a coefficient friction of 1.2. How far does she travel before stopping