How much work is done in raising a stone of mass 5 kg to a height of 5m?
Answer: 250 is the correct ANSWER !!
How much work can a 5 kg mass do if it is 5 m above the ground?
Therefore ,here our force is due to acceleration due to gravity which will be 5g(g=9.8ms^-2) and displacement is 5metre. Hence work done is equal to 245J.
How much work is done in raising a stone of mass 20 kg to a height of 7m?
The work done is the product of force and displacement. Force is the product of mass and acceleration which in this case is acceleration due to gravity. Thus the work done to lift the load is 196J.
What is the work done in raising a stone of mass 4 kg and specific gravity 2 lying?
Work done = F × S = 19.6 × (3 – 1) = 39.2 J.
How much work is done in raising a mass?
W=mgh=15×10−3×10×1=0.15J.
How much work is done to lift 20kg mass 1.5 meters?
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. In the example above F = mg = (20 kg)(9.8 m/s2) = 196 N, W = (196 N)(1.5 m) = 294 Nm.
What is the work done in lifting a body of mass 5 kg?
The correct answer is 25 J.
What is rate of work done?
The SI unit of work done is joule. Now, the rate of work done means the amount of work done per unit time. Now, power can be defined as the amount of energy Transferred per unit time. Energy transferred is the same as the work done on the object.
How is work done?
Work is done whenever a force moves something over a distance. You can calculate the energy transferred, or work done, by multiplying the force by the distance moved in the direction of the force.
How do you calculate work given mass and height?
Work is the force exerted on an object times the distance over which the force is exerted: W = Fx, where W is the work in Nm = Joule. Work done to lift an object of mass m a height h: W = Fgh = mgh. Work done against friction: W = Ff x.