How much time do the workers have to get to the piano

Assignment Help Physics

Reference no: EM13707779

Question: A piano has been pushed to the top of the ramp at the back of a moving van. The workers think it is safe, but, as they walk away, it begins to roll down the ramp. If the back of the truck is 2.91 m above the ground and the ramp is inclined at 13.97^o,

Part A: How much time do the workers have to get to the piano before it reaches the bottom of the ramp?

Please explain your answer. I know substitution is involved so be sure to give a detailed explanation on that as well.

Reference no: EM13707779

Questions Cloud

What are the advantages of conducting a cost-benefit : What are the advantages of conducting a cost-benefit analysis on a new health care service an insurance company is considering, such as screening for prostrate cancer as a covered benefit? Support your answer with References

Determine the final pressure and temperature : A piston/cylinder assembly in a car contains 12 in3 of air at 13 lbf/in2 and 68 F. The air is compressed in a polytropic process with exponent n = 1.25 to a final volume six times smaller. Determine the final pressure and temperature, and the heat tr..

Probabilistic activity time estimates are for a cpm : The following probabilistic activity time estimates are for a CPM/PERT network. Time Estimates (days) Time Estimates (days) Activity a m b Activity a m b 1 1 2 6 7 1 1.5 2 2 1 3 5 8 1 3 5 3 3 5 10 9 1 1 5 4 3 6 14 10 2 4 9 5 2 4 9 11 1 2 3 6 ..

Calculate the heat transfer in the process : A cylinder fitted with a frictionless piston contains 2 kg of superheated refrigerant R-134a vapor at 350 kPa, 100oC. The cylinder is now cooled so that the R-134a remains at constant pressure until it reaches a quality of 75%. Calculate the heat tra..

How much time do the workers have to get to the piano : A piano has been pushed to the top of the ramp at the back of a moving van. The workers think it is safe, but, as they walk away, How much time do the workers have to get to the piano

Propulsion scheme calls for use of liquid nitrogen as fuel : A new vehicle propulsion scheme calls for the use of liquid nitrogen as "fuel". The details of the power cycle are basically liquid nitrogen is heated in contact with the atmosphere, pressurised and expanded through a turbine) .

Piston is proportional to the cylinder volume squared : A cylinder fitted with a piston containing 1kg of Refrigerant 134a at 20C and 90% vapor quality is attached to a line flowing Refrigerant 134a. The total force on the piston is proportional to the cylinder volume squared.

What is the direction measured down from vertical : A flea jumps by exerting a force of 1.22 x 10-5 N straight down on the ground. What is the direction measured down from vertical

How much time is the stone in the air : While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 5.83 m/s. How much time is the stone in the air

User Account

All Pages