Fallon

A child who has a mass of 17 kg slides down a slide from a height of 3.3 m. If friction does a non-conservative work of -143 J, what is the speed (in m/s) of the child at the bottom of the slide? The acceleration due to gravity is 9.81 m/s2

A box which has a mass of 48 kg is dragged across the floor a distance of 5.9 m. If the coefficient of friction between the box and floor is 0.53, how much non-conservative work is done by friction? The acceleration due to gravity is 9.81 m/s2.

Starting from rest, a ball of mass 4 kg experiences a constant force of 8 N. What is the final kinetic energy (in J) of the ball after it has traveled a distance of 1 m?

Starting from rest, a ball of mass 3 kg experiences a constant force of 21 N for 12 s. What is the final kinetic energy (in J) of the ball after 12 s?

A 61.8 kg skier coasts up a snow-covered hill that makes an angle of 26.0° with the horizontal. The initial speed of the skier is 6.10 m/s. After coasting a distance of 1.86 m up the slope, the speed of the skier is 4.48 m/s. Calculate the work done by th...

How much work (in J) must be done to lift a stack of bricks, which has a mass of 600 kg, from the ground to a height of 15 m? Acceleration due to gravity is 10 m/s2

How much work (in J) is done to accelerate a car which has a mass of 3300 kg from a speed of 7 m/s to a speed of 16 m/s?

A cable lifts a 1200 kg elevator at a constant velocity for a distance of 34.5 m. What is the work done by the tension in the cable.

A person pulls a toboggan for a distance of 37.2 m along the snow with a rope directed 25.4° above the snow. The tension in the rope is 84.1 N. How much work is done on the toboggan by the tension force?

A 4.92E+2 kg hot-air balloon takes off from rest at the surface of the earth. The nonconservative wind and lift forces take the balloon up, doing +9.81E+4 J of work on the balloon in the process. At what height above the surface of the earth does the ball...

A jogger travels a route that has two parts. The first is a displacement A of 2.30 km due south, and the second involves a displacement B that points due east. The resultant displacement A + B has a magnitude of 3.63 km. What is the magnitude of B?

A standard deck of has 52 cards, and contains 13 cards of each of the four suits: diamonds, spades, hearts, and clubs. What is the probability that you choose a spade, given that you have already chosen a diamond (and have not replaced it)?

There are 24 member on the team. The team is 7/12 girls and 5/12 boys. How many more girls are on the team than boys?

Sponges, condoms, birth control, abstinence.

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