Advertisements
Advertisements
प्रश्न
A uniform circular motion is an accelerated motion. Justify it.
Advertisements
उत्तर
In uniform circular motion, a particle travels equal distances along the circular path in equal intervals of time, so the speed of particle is uniform. But the direction of motion of the particle changes at each point of circular path. Due to continuous change in direction of motion, the velocity of the particle is not uniform (or velocity is variable) i.e., the motion is accelerated.
APPEARS IN
संबंधित प्रश्न
Fill in the blank with suitable word :
The work done on a body moving in a circular path is __________
Give one example each in which a force does (a) positive work (b) negative work, and (c) zero work.
Explain by an example that a body may possess energy even when it is not in motion.
Determine the amount of work done when an object is displaced at an angle of 30° with respect to the direction of the applied force.
What is the relationship between Nm and dyne cm?
What is the ratio of SI units to CGS units of 'work'?
A canon ball of mass 500g is fired with a speed of 15m/s-1. Find: its momentum.
Calculate the work done when:
A 5 kg weight is lifted 10 m vertically. (g = 9.8 m/s2)
A water pump raises 50 kg of water through a height of 25 m in 5s. Calculate the power supplied by the pump (Take: g = 10 N kg−1).
