Advertisements
Advertisements
Question
Why is the motion of a body moving with a constant speed around a circular path said to be accelerated?
Advertisements
Solution
In circular motion with constant speed linear velocity changes in terms of direction, therefore, it is accelerated motion.
APPEARS IN
RELATED QUESTIONS
A stone tied to the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 s, what is the magnitude and direction of acceleration of the stone?
A particle starts from the origin at t = 0 s with a velocity of 10.0 `hatj "m/s"` and moves in the x-y plane with a constant acceleration of `(8.0 hati + 2.0 hatj) ms^(-2)`.
- At what time is the x-coordinate of the particle 16 m? What is the y-coordinate of the particle at that time?
- What is the speed of the particle at the time?
State True or False
The earth moves around the sun with a uniform.
Which of the following quantity remains constant in a uniform circular motion?
Earth can be thought of as a sphere of radius 6400 km. Any object (or a person) is performing circular motion around the axis of earth due to earth’s rotation (period 1 day). What is acceleration of object on the surface of the earth (at equator) towards its centre? what is it at latitude θ? How does these accelerations compare with g = 9.8 m/s2?
Earth also moves in circular orbit around sun once every year with on orbital radius of 1.5 × 1011 m. What is the acceleration of earth (or any object on the surface of the earth) towards the centre of the sun? How does this acceleration compare with g = 9.8 m/s2?
The acceleration of a point on the rim of a flywheel 1 m in diameter, if it makes 1200 rpm is ______.
The kinetic energy K of a particle moving along a circle of radius R depends on the distance covered s as K = as2, where a is a constant. The force acting on the particle is ______.
By applying Kepler's third law to the formula for centripetal force, Newton concluded that the force acting on a planet is:
Angular displacement is measured in which unit?
