Advertisements
Advertisements
प्रश्न
In the case of negative work, the angle between the force and displacement is
पर्याय
0°
45°
90°
180°
Advertisements
उत्तर
180°
Explanation:
Work done is negative when a force acts opposite to the direction of displacement, i.e. the angle between the two directions is 180°.
APPEARS IN
संबंधित प्रश्न
Is energy a vector quantity?
What kind of energy is possessed by the following?
Water stored in the reservoir of a dam __________.
What type of energy is possessed : by the piece of stone which is thrown away on releasing the stretched rubber strings of catapult?
A boy weighing 40 kg makes a high jump of 1.5 m.
What is his kinetic energy at the highest point?
Two bodies having equal masses are moving with uniform speeds of v and 2v respectively. Find the ratio of their kinetic energies.
What is the difference between potential energy and kinetic energy?
What kind of energy transformation take place at a hydroelectric power station?
What kind of energy transformations take place at a coal-based thermal power station?
A ball falls to the ground as shown below :
What is the potential energy of ball at B?
A microphone converts :
