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 13.97o,

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

Reviews

Write a Review

Physics Questions & Answers

  Obtain the speed of a point on the edge of the wheel

A ferris wheel at a local carnival has a radius of 20.0 m and it completes one revolution in 9.60 seconds. What is the speed of a point on the edge of the wheel

  Concave mirror is used to project a transparent slide wall

A concave mirror (R = 56.0 cm) is used to project a transparent slide onto a wall. The slide is located at a distance of 38.0 cm from the mirror, and a small flashlight shines light through the slide and onto the mirror. The setup is similar to that ..

  Determine the direction of the net force

Find the net force on the Moon (mM = 7.35 × 1022 kg) due to the gravitational attraction of both the Earth mE = 5.98 × 1024, Determine the direction of the net force

  What is the average force exerted to stop the bullet

If a 25-gram bullet with a speed of 330 m/s travels 15 cm into a tree before stopping, what's the average force exerted to stop the bullet

  Find the maximum allowable height of pump relative to water

A pump is to pump against a head of 450 ft. the barometric pressure is 14.4 psia, the vapor pressure of the water is 0.6 psia. assume friction losses in the intake piping is 6 ft., and the velocity is 10 fps.

  Calculate how fast the ball and embedded projectile are

A projectile of mass 350-g is accelerated from rest at 8.25 m/s2 for 3.5s. Calculate how fast the ball and embedded projectile are after the collision

  What is the spring constant of her achilles tendon

In Chapter 10 in the textbook, we saw that the Achilles tendon will stretch and then rebound, storing and returning energy during a step. What is the spring constant of her Achilles tendon

  Determine how many bounces can the ball make

A ball is dropped from rest from the top of a 6.30-m-tall building, falls straight downward, collides in-elastically with the ground, How many bounces can the ball make

  Determine with what speed are they traveling

If the breakers at a beach are separated by 6.0 m and hit shore with a frequency of0.28 Hz, with what speed are they traveling

  Find an expression for the magnetic field strength

Two identical coils are parallel to each other on the same axis. They are separated by a distance equal to their radius . They each have turns and carry equal currents in the same direction.

  Calculate the kinetic energies of two uniform solid cylinder

Calculate the kinetic energies of two uniform solid cylinders, each rotating about its central axis. They have the same mass, 2.75 kg

  What is the frictional force on the block

A 10 N horizontal force F pushes a block weighing 9.0 N against a vertical wall. The coefficient of static friction between the wall and the block is 0.75, What is the frictional force on the block

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd