Table of Contents
- 1 How much work will it take to lift a 5 kg?
- 2 How much work would be required to put a 35 kg box up onto a 2 m high shelf?
- 3 How much work is done in raising a stone of mass 5 kg to a height of 5m?
- 4 What is the work done in lifting a 5kg body through a height of 10m?
- 5 How do you calculate work when lifting an object?
- 6 How do you calculate power in physics?
- 7 How high can a 10kg body be lifted from the ground?
- 8 How many joules does it take to move a 15kg object?
- 9 How much work does the force of gravity do?
How much work will it take to lift a 5 kg?
If 5kg mass is lifted on 10m height, how much work will be done? Work is merely force times distance, so in this case the force is F = ma = 5 x 9.81 = 49N. The work done then becomes 49Nm x 10m = 490 Joules.
How much work would be required to put a 35 kg box up onto a 2 m high shelf?
35 kg⋅9.8 m/s2=343 N . The distance here is 12 m=0.5 m . Note that I used g=9.8 m/s2 to calculate the weight of the box.
How much power is developed by lifting a crate with an applied force of 350 N for 3 seconds the person must lift this crate 2.5 meters?
The student weighs 784 N (Fgrav= 80 kg * 9.8 m/s/s). 8. Calculate the work done by a 2.0-N force (directed at a 30° angle to the vertical) to move a 500 gram box a horizontal distance of 400 cm across a rough floor at a constant speed of 0.5 m/s. (HINT: Be cautious with the units.)
How much work is done in raising a stone of mass 5 kg to a height of 5m?
Answer: 250 is the correct ANSWER !!
What is the work done in lifting a 5kg body through a height of 10m?
The formula for potential energy due to gravity is PE = mgh. As the object gets closer to the ground, its potential energy decreases while its kinetic energy increases. In this case, a body of mass 5 kg kept at a height of 10 m. So the potential energy is given as 5 * 10 *10 = 500 J.
How much work is done in lifting the box?
It states that the work done by the person lifting the box is mgh, where h is the height the box is lifted, and correspondingly the work done by gravity is -mgh. Thus, the total work is 0.
How do you calculate work when lifting an object?
As you are lifting the object you are doing work on the object. The work W done on an object by a constant force is defined as W = F·d. It is equal to the magnitude of the force, multiplied by the distance the object moves in the direction of the force.
How do you calculate power in physics?
Power is equal to work divided by time. In this example, P = 9000 J /60 s = 150 W . You can also use our power calculator to find work – simply insert the values of power and time.
How do you calculate potential energy in simple harmonic motion?
Answer: a) purely kinetic. At the mean position, the velocity of the particle in S.H.M. is maximum and displacement is minimum, that is, x=0. Therefore, P.E. =1/2 K x2 = 0 and K.E. = 1/2 k ( a2 – x2) = 1/2 k ( a2 – o2) = 1/2 ka2. Thus, the total energy in simple harmonic motion is purely kinetic.
How high can a 10kg body be lifted from the ground?
A body of mass 10kg is lifted to a height 5m from the ground. How would one find the work done? Study nutrition science online, led by experts. Gain the skills to interpret nutritional research and understand how it relates to human health. Work done is change in potential energy of the object.
How many joules does it take to move a 15kg object?
500J A 100N force is applied to move a 15kg object a horizontal distance of 5 meters at a constant speed. What is the work done on this object? 735J An upward force is applied to lift a 15kg object to a height of 5 meters at a constant speed.
How many Watts Does It take to move a box 10m?
2 watts (2J per second) John exerted 5N to move a box 10 meters in 25 seconds. What’s his power? 4N A rock is moved 20 meters in 10 seconds.
How much work does the force of gravity do?
Without more information, the only thing we can say for sure is that the force of gravity does the following amount of work: The work done by gravity is negative since work is a dot product and the force of gravity is down while the displacement vector is up.