Question 1 :
Choose the correct statement from the following:<br>Weightlessness of an astronaut moving in a satellite is a situation of
Question 2 :
A player caught a cricket ball of mass $150kg$ moving at a rate of $20m/s$. If the catching process is completed in $0.1s$, the force of the blow exerted by the ball on the hand of the player is
Question 3 :
A player caught a cricket ball of mass $150kg$ moving at a rate of $20m/s$. If the catching process is completed in $0.1s$, the force of the blow exerted by the ball on the hand of the player is
Question 4 :
A uniform rod of mass $M$ has an impulse applied at right angles to one end begins to move with speed $V$,the magnitude of the impulse is
Question 5 :
<p>A stationary ball weighing $0.25\  kg$ acquires a speed of $10 \ m/s$ when hit by a hockey stick. The impulse imparted to the ball is:</p>
Question 6 :
 A mass of $6 \ kg$ is suspended by a rope of length $2 \ m$ from a ceiling. A force of $50 \ N$ is applied in horizontal direction at the mid point of the rope. What is the angle of the rope with the vertical in equilibrium?
Question 7 :
In which example is it not possible for the underlined body to be in equilibrium?
Question 8 :
Which of the following uses the principle of conservation of momentum?
Question 9 :
In which example is it not possible for the underlined body to be in equilibrium?
Question 10 :
Which of the following cannot be explained using Newton's third law of motion?
Question 11 :
Two persons $P$ and $Q$ of the same height are carrying a uniform beam of length $3 m$. If $Q$ is at one end, then the distance of $P$ from the other end such that $P$, $Q$ receive loads in the ratio $5 : 3$ is:<br>
Question 12 :
If the action and reaction forces are always equal in magnitude, then these forces
Question 13 :
After falling from rest through a height $h$, a body of mass $m$ begins to raise a body of mass $M (M > m)$ connected to it through a pulley. Find the fraction of kinetic energy lost when the body of mass $M$ is jerked into motion .
Question 14 :
An object is said to be in equilibrium when:<br/>1. there is no net force acting on the object<br/>2. the total clockwise moments about any point is equal to the total anti-clockwise moments about the same point<br/>3. the object moves with constant velocity