A block of mass m = 5.00 kg is released from rest from point @ and slides on the frictionless track shown in Figure P5.36. Determine (a) the block's speed at points ® and © and (b) the net work done by the gravitational force on the block as it moves from point from @ to ©. 5.00 m 3.20 m 2.00 m Figure P5.36

PW-3 An elevator motor is capable of lifting a 2,500kg elevator 50.0m with a constant speed in 12.0 seconds. a) Apply Fet ma to find the force needed to lift the elevator. b) Find the power of the elevator motor in watts and in horsepower. (1H.P.-750W) c) If the power of the elevator motor is 200H.P., find the constant speed at which the 2,500kg elevator can be raised. d) If the power of the elevator motor is 200H.P., find the constant speed at which the elevator can be raised if the elevator and its contents have a mass of 4,000kg

Hi there!! My question is bolded below :) It is a multiple choice question, so I have also listed every possible answer.    A person with a mass of 42kg starts from rest at position A, as shown, and then slides down to positions B, C, and D. Calculate the gravitational potential energy of the person at A.   412 J   672 J   4.2 kJ   6.6 kJ Thanks!

A particle moving along the x-axis is in a system Part B ▼ with potential energy U = 11/x J, where x is in m. What is the x-component of the force on the particle at x = 5 m? Express your answer to two significant figures and include the appropriate units. HẢ ? Fx = Value Units

A 3.0 kg block is thrown downward from a point 37 m above the Earth's surface. At what height above Earth's surface will the gravitational potential energy of the Earth-block system have decreased by 320 J? O 11m O 37 m O 7.0 m O 26 m O 48 m Save for Later Submit Answer

A center throws a basketball m = 1 kg straight up with an initial speed of vo = 9.5 m's. He releases the ball at shoulder | height ho = 1.9 m. Let gravitational potential energy be zero at ground level. Give the total mechanical energy of the ball E in terms of maximum height h it reaches, the mass m, and the gravitational acceleration g. E= What is the height, hm in meters? 9 HOME

Calculate the potential energy, kinetic energy, mechanical energv, velocitv, and height of the coaster at the various locations. No Friction on this Roller Coaster. mass of the roaller coaster car = 85 kg 100 start 95 Let gravity on Earth equal 10 m/s? Bcar bumper D E water F finish A B D E P.E. К.Е. M.E. 5 m/s speed height 80 m Height in meters

Suppose a 85 kgkg sprinter, starting from rest, runs the first 14 mm in 3.0 ss at constant acceleration, a reasonable model. a. What is the magnitude of the horizontal ground force acting on the sprinter? b.What is the sprinter's power output at 1.0 ss, 2.0 ss, and 3.0 ss?