7 practice questions for this chapter, gradeable instantly.
Q1
The direction of the angular acceleration of a body is always
I. along the axis of rotation
II. along the tangent to the path
III. perpendicular to the axis of rotation
Q2

The given diagram shows the projectile motion of a ball, with points A, B, C and D marked along its path. Considering the given situation, the magnitude of the vertical component of velocity will be maximum at point
Q3
The acceleration produced by virtue of changing direction of velocity of an object moving in a circular path is called
Q4
In all of the following sports, the law of conservation of angular momentum is used EXCEPT in
Q5
When an object moves with uniform speed in a circular orbit, its centripetal acceleration will be directed
Q6
Missiles I, II, III and IV are launched at , , and , respectively from the launching pad with same initial velocity. The shortest distance will be covered by
Q7

The given figure shows the first attempt of a long jump of an athlete in Olympics. Which of the following factors of the athlete will MAINLY help him to improve his own record in the next attempt?