Solution please A 22 kg hay bale is lifted to a height of 22 meters and...
A farmer uses a tractor to pull a 230 kg bale of hay up a 15∘ incline to the barn at a steady 5.0 km/h. The coefficient of kinetic friction between the bale and the ramp is 0.50. What is the tractor's power output?
A farmer uses a tractor to pull a 170 kg bale of hay up a 15 degree incline to the barn at a steady 5 0 km/h The coefficient of kinetic friction between the bale and the ramp is 0.40 What is the tractor's power output? Express your answer with the appropriate units.
A) A mass of 2.9 kg is dropped from a height of 4.07 meters above a vertical spring anchored at its lower end to the floor. If the spring constant is 25 N/cm, how far, to the nearest tenth of a cm, is the spring compressed? B) If the top of the spring in the preceding problem is 1.99 meters above the ground when the mass is released, what is the ball's kinetic energy, to the nearest Joule, just before...
Raise a mass 45.7 kg to height 7.7 in meters, then let it go. How much kinetic energy does it have in joules when it reaches the ground? Assume the acceleration of gravity is 9.8 m/s2.
An object of mass m is released from a height of h meters above the ground, as shown in figure below. Determine the ratio of the potential energy to the kinetic energy at point A m 1 0.3 h LOR 3/7
A 500 kg load is lifted to a height of 20 meters by means of a pulley block which has an efficiency of 92%. Determine: a) The work output of the machine b) The work lost c) The power developed in Hp if the load was lifted in a time of 2 minutes.
10. A 50-kg box is 10 meters above the floor. This box is lifted 20 meters to point B. It is then lowered 25 meters to point C. a. What is the change in potential energy of the box between points A and C? b. What power is required to move the box from point A to point in 20 seconds? Give answer in both Watts and horsepower.
please show work! 9. A 2-kg ball is dropped out of a w is dropped out of a window from a height of 12 meters (Point A). It hits the grow and bounces back up to a height of 8 meters above the ground (Point). a. What is the potential energy of the ball at points A and C b. What is the velocity of the ball just before and just after it hits the ground (points B and B')?...
A projectile with mass 0.50 kg is launched from an initial height of 2.4 meters and reaches a maximum height of 3.4 meters before landing on the ground (0.0 meters.) What is its change in gravitational potential energy from the beginning to the end?
You throw a frisbee of mass m = 0.5 kg, and radius r = 0.1 meters, off of a hill, with initial translational speed of v0 = 5 m/s, from a height of h0 = 3 meters. The tangential speed of the edge of the frisbee is equal to the initial translational speed, and doesn't change as it travels through the air. Treat the frisbee as a solid disk, and ignore air resistance. a) What is the initial total Kinetic...