**1211. The Horizontal range of a projectile, at a certain place , depends upon:**

A. The mass of the projectile

B. The velocity of projection

C. The angle of projection

**D. The angle as well as velocity of projection ***

**1212. The velocity and acceleration of a body moving with uniform speed in circle are :**

A. Parallel

B. Opposite

**C. Mutually perpendicular ***

D. None of the above

**1213. The time it would take for an iron ball and a wooden ball of the same radius to reach ground from a height of “H” in vacuum would be:**

A. Unequal

**B. Exactly equal ***

C. Roughly equal

D. Zero

**1214. Which of the following statements for an object in equilibrium is not true ?**

**A. The object must be at rest ***

B. The article can be very still

C. The object continues to move at the same speed.

D. The object has no acceleration.

**1215. At the top of the trajectory of a projectile , the directions of its velocity and acceleration are :**

**A. Perpendicular to each other ***

B. Parallel to each other

C. Inclined to each other at an angle of 45 degree

D. Antiparallel to each other

**1216. When a body is moving on a surface , the force of friction is called :**

A. Static friction

**B. Dynamic friction ***

C. Limiting friction

D. Rolling friction

**1217. Combining two displacement vectors of magnitudes 6m and 8m will produce a resultant displacement of 10m:**

A. Parallel

B. Anti parallel

C. At angle 60 degree

**D. Perpendicular to each other ***

**1218. If the values of instantaneous and average velocities are equal , the body is said to be moving with :**

A. Uniform acceleration

B. Uniform speed

C. Variable velocity

**D. Uniform velocity ***

**1219. Particles travel at a speed of 10 m/s at any given instant and 20 m/s after 5 seconds. In m/s, the speed 3s before is:**

A. 8

**B. 4 ***

C. 6

D. 2

**1220. In case when there is no total displacement and average velocity , then the motion is described by:**

A. Variable velocity

**B. Instantaneous velocity ***

C. Initial velocity

D. None of the above