Let we bar and bar denote the velocity and acceleration of a body respectively then option A can be non zero when we bar is zero option B A must be zero when we bar is zero option c a bar maybe 0 when we were is not equals to zero a bar must be zero where we bar is constant

The acceleration of a body cannot be zero at a point where Question 3Answera.None of these b.The average velocity is positivec.The average velocity is negatived.The instantaneous velocity is positive but decreasinge.The instantaneous velocity is zero

Which of the following situations is true and possible?a. If the velocity of a body is zero, then the acceleration can be non-zerob. A body moving at a constant velocity can have accelerationc. The magnitude of distance and displacement are equal in a circular motiond. All of the above

A ball thrown into the air follows a projectile motion. At the highest point in the motion... neither the acceleration nor the velocity are zero. both the velocity and the acceleration are zero. the velocity is zero, but the acceleration is not zero. we need more information the acceleration is zero but the velocity is not zero.

If net unbalanced external force acting on an object is zero, then(A)Velocity of object may or may not be zero(B)Acceleration of object must be zero(C)Velocity of object must be non-zero(D)Acceleration of object must be non-zero constantChoose the correct optionOptions: (A) and (B)(B) and (C)(C) and (D) (A) and (D)

25. Which of the following situations is impossible?*A. An object has velocity directed east and acceleration directed west.B. An object has velocity directed east and acceleration directed east.C. An object has velocity zero velocity but non-zero acceleration.D. An object has constant non-zero velocity and changing acceleration.