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The 66 kg skier slides down a hill 25 m high. The potential energy of the skier at the top of the hill that has a height of 25 m is given by PE = m*g*h = 66*9.8*25. A 1.5-kg cannon is mounted on top of a 2.0-kg cart and loaded with a 52.7-gram ball. The cannon, cart, and ball are moving forward with a speed of 1.27 m/s. The cannon is ignited and launches a 52.7-gram ball forward with a speed of 75 m/s. Determine the post-explosion velocity of the cannon and cart.

The forgotten component of sub-glacial heat flow: Upper crustal heat production and resultant total heat flux on the Antarctic Peninsula. NASA Astrophysics Data System (ADS) ...
A 50-N force is the only force on a 2-kg crate that starts from rest. At the instant the crate has gone 2 m the rate at which the force is doing work is: A) 2.5 W B) 25 W C) 75 W D) 100 W E) 500 W 20. A 0.50-kg block attached to an ideal spring with a spring constant of 80 N/m oscillates on a horizontal frictionless surface.
If starting from rest, the mechanical energy of the skier is entirely in the form of potential energy. As the skier begins the descent down the hill, potential energy is lost and kinetic energy (i.e., energy of motion) is gained. As the skier loses height (and thus loses potential energy), she gains speed (and thus gains kinetic energy).
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42) A 4.0 kg hollow cylinder of radius 5.0 cm starts from rest and rolls without slipping down a 30 degree incline. The acceleration of the center of mass of the cylinder is, a) 2.45 m/s. b) 2.98 m/s. c) 3.35 m/s. d) 3.98 m/s. e) 4.05 m/s. Ans: a. 43) A 4.0 kg hollow cylinder of radius 5.0 cm starts from rest and rolls without slipping down a ...
- Start Block B - - - Finish 34-SCT20: BLOCKS SLIDING DOWN FRICTIONLESS RAMPS—WORK BY THE EARTH Two identical blocks are released from rest at the same height. lock A slides down a steeper ramp than Block B. Both ramps are frictionless. The blocks reach the same final height indicated by the Block A tower dashed line.
A 75.0-kg skier starts from rest and slides down a 32.0-m frictionless slope that is inclined at an angle of 15.0° with the horizontal. Ignore air resistance, (a) Calculate the work done by gravity on the skier and the work done by the normal force on the skier, (b) If the slope is not frictionless so that the skier has a final velocity of 10.0 m/s, calculate the work done by gravity, the ...
A boy starts at rest and slides down a frictionless slide as shown in the figure. The bottom of the track is a height h above the ground. The boy then leaves the track horizontally, striking the ground at a distance d as shown. Using energy methods, determine the initial height H of the boy above the ground in terms of h and d.
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  • kg and m 2 which has a mass 75.0% that of m 1, are attached to a cord of negligible mass which passes over a frictionless pulley also of negligible mass. If m 1 and m 2 start from rest, after they have each traveled a distance h = 3.00 m, use energy content to determine the following. (a) speed v of the masses 4.05 2.9 m/s (b) magnitude of the ...
  • A skier starts from rest at point A and slides donw the hill without turning or breaking. The friction coefficient is When he stops at point B, his horizontal displacement is S. whalt is the height difference between points A and B? <br> (The velocity of the skier is small so that the additional pressure on the snow due to the curvature can vbe neglected.
  • A 2.70-kg block starts from rest at the top of a 30:0 incline and slides a distance of 1.90 m down the incline in 2.00 s. • a) Find the magnitude of the acceleration of the block. • b) Find the coe cient of kinetic friction between block and plane. • c) Find the friction force acting on the block.
  • Nov 21, 2015 · A 59 kg skier starts from rest at height H = 25 m above the end of a ski-jump ramp (see the figure). As the skier leaves the ramp, his velocity makes an angle of θ = 20° with the horizontal. ? Neglect the effects of air resistance and assume the ramp is frictionless.
  • Solution for A skier slides down a hill in a straight line. The hill is 60m high and the coefficient of kinetic friction between the snow and the skis is 0.1.…

8. A 10 kg block of ice slides down a ramp 20 m long, inclined at 10° to the horizontal. a) If the ramp is frictionless, what is the acceleration of the block of ice? b) If the coefficient of kinetic friction is 0.10, how long will it take the block to slide down the ramp, if it starts from rest? 9. A skier has just begun descending a 20° slope.

A 65-kg skier starts at rest and slides 30 m down a hill inclined at 12∘ relative to the horizontal. Consider the force of friction on the skier to be negligible. Determine the speed of the skier after sliding 30 m downhill. asked by JAde on October 18, 2015 Physics
100. A piece of ice (m = 500.0 g) slides down the slope of a roof inclined at 50.0 . It starts from rest and slides 8.0 m along the roof, sliding off the edge at a height of 4.0 m above the level ground. The coefficient of kinetic friction is 0.14. (a) Draw a free-body diagram of the ice as it is sliding along the roof.

A skier starts from rest at point A and slides donw the hill without turning or breaking. The friction coefficient is When he stops at point B, his horizontal displacement is S. whalt is the height difference between points A and B? <br> (The velocity of the skier is small so that the additional pressure on the snow due to the curvature can vbe neglected.

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cover 1.0 km in 12 s, starting from rest. (Il) The coefficient of kinetic friction for a 22-kg bobsled on a track is 0.10. What force is required to push it down a 6.00 incline and achieve a speed of 60 km/h at the end of 75 m? (Il) For the system of Fig. 4—32 (Example 4—20) how large a mass would box A have to have to prevent any