Assumptions
Trending Questions
Q. In uniform circular motion kinetic energy why not variable since the velocity is changing
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Q. A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane. It follows that
- Velocity is constant
- Acceleration is constant
- Kinetic energy is constant
- It moves in a circular path
Q. The tire pictured below is rolling to the left at a constant speed without slipping on a horizontal roadway. What is the direction of the acceleration of the part of the tire that in contact with the road?
- left
- right
- up
- down
- The acceleration of this part of the tore is zero.
Q. Is the acceleration of a particle in uniform circular motion constant or variable?
- Variable
- Constant
- Sometimes constant
- Always constant
Q. A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane. It follows that
- Velocity is constant
- Acceleration is constant
- Kinetic energy is constant
- It moves in a circular path
Q.
State whether true or false.
The magnitude of the radius vector remains constant in a Uniform Circular Motion.
- True
- False
Q. In absence of air, projectile motion is always a 2D motion.
- True
- False
Q. In absence of air, projectile motion is always a 2D motion.
- True
- False
Q. Assertion :A body with constant acceleration always moves along a straight line. Reason: A body with constant magnitude of acceleration may not speed up.
- Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- Assertion is correct but Reason is incorrect
- Assertion is incorrect but Reason is correct
Q. The shape of the trajectory of motion of an object is not determined by acceleration alone but also depends on initial condition of motion.
Q. Assertion :When a body is subjected to a uniform acceleration, it always move in a straight line. Reason: Straight line motion is the natural tendency of the body.
- Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- Assertion is correct but Reason is incorrect
- Assertion is incorrect but Reason is correct
Q. A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion of the particle takes place in a plane. It follows that
- Velocity is constant
- Acceleration is constant
- Kinetic energy is constant
- It moves in a circular path
