Advertisements
Advertisements
प्रश्न
Why is a jack screw provided with a long arm?
Advertisements
उत्तर
A jack screw is provided with a long arm in order to have the effortless than the load. According to the principle of moments, load x load arm = effort x effort arm. So, if the load arm is more, then the effort will be more than the load.
APPEARS IN
संबंधित प्रश्न
A force acts on a body and displaces it by a distance S in a direction at an angle θ with the direction of the force. What should be the value of θ to get the maximum positive work?
The power of a motor is 40 kW. At what speed can the motor raise a load of 20,000 N?
State the law of conservation of energy.
Distinguish between work and power.
Give an example
Electrical energy changes of sound energy.
Give an example
Chemical energy changes to heat energy.
A ______ should act on an object.
