1. Find the work done (in Joules) in pushing a car a distance of 8 meters while exerting a constant force of 900 N.
2. A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over the edge of a building 120 ft high.
a) How much work is done (in ft-lb) in pulling the rope to the top of the building?
b) How much work is done (in ft-lb) in pulling half the rope to the top of the building?
3) The tank shown below is half full of oil, which has density 920 kg/m^3 Find the work (in joules) required to pump the oil out of the outlet. Make sure your answer is correct to within one thousand joules...the pump is 1m , the length of the tank is 6m and the radius is 1.5m.
4) The tank shown below is full of water. Using the fact that the weight of water is 62.5 lb/ft^3 find the work (in ft-lbs) required to pump the water out of the outlet. Make sure your answer is correct to within ten ft-lbs....(the tank is a half sphere with a radius of 5ft.
2. A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over the edge of a building 120 ft high.
a) How much work is done (in ft-lb) in pulling the rope to the top of the building?
b) How much work is done (in ft-lb) in pulling half the rope to the top of the building?
3) The tank shown below is half full of oil, which has density 920 kg/m^3 Find the work (in joules) required to pump the oil out of the outlet. Make sure your answer is correct to within one thousand joules...the pump is 1m , the length of the tank is 6m and the radius is 1.5m.
4) The tank shown below is full of water. Using the fact that the weight of water is 62.5 lb/ft^3 find the work (in ft-lbs) required to pump the water out of the outlet. Make sure your answer is correct to within ten ft-lbs....(the tank is a half sphere with a radius of 5ft.
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1.7200
2.a)625 b)468.75
3. Don't know
4.30679.6
2.a)625 b)468.75
3. Don't know
4.30679.6