3 years ago

A ramp is used to load furniture onto a moving truck. The person does 1240 J of work pushing

Physics

1 answer:

Len [333]3 years ago

6 0

Answer:

The efficiency of the ramp is, Eff = 6.63 %

Explanation:

Given,

The work done by the person pushing the furniture up the ramp is, W₁ = 1240 J

The work done by the ramp is, W₀ = 822 J

The efficiency of the ramp is given by the formula,

= ( 822 / 12400 ) x 100%

= 6.63 %

Hence, the efficiency of the ramp is, Eff = 6.63 %

You might be interested in

when an apple falls towards the earth the earth moves up to meet the apple. Is it true? If yes, why is the earth motion not noti

timurjin [86]

Answer:

Explanation:

The apple also exerts an equal and opposite force on the earth but earth does not move because the mass of apple is very small,due to which the gravitational force produces a large acceleration in it (a=F/m) and we can see the apple falling towards the earth but the mass of earth is very large,the same gravitational .

3 0

2 years ago

Which best describes the second law of thermodynamics? energy is not created nor destroyed, but it can change into matter. energ

otez555 [7]

<span>the answer is energy is not created nor destroyed, but it can change from one energy form to another.</span>

3 0

3 years ago

Read 2 more answers

PLS THIS IS DUE IN 2 MINUTES

luda_lava [24]

Answer:

The toy car