Question

ASSIGNMENT QUESTIONS

MOTION

Multiple Choice questions:

1. If the displacement of an object is proportional to square of time, then the object moves with

(a) uniform velocity

(b) uniform acceleration

(c) increasing acceleration

(d) decreasing acceleration

2. The distance time graph of a body coincides with its time axis. The body must be

(a) in uniform motion

(b) at rest

(c) in uniformly accelerated motion

(d) in zig-zag motion

3. From the given v - t graph (see below Fig.), it can be “inferred that the object is

(a) in uniform motion

(b) at rest

(c) in non-uniform motion

(d) moving with uniform acceleration

4. The velocity time graph of a body is parallel to the time axis. The body is

(a) at rest

(b) having uniform acceleration

(c) having zero acceleration

(d) having non-uniform acceleration​

Answer 1

Answer:

1(b)

2(a)

3(d)

4(b)

Explanation:

baki bhai explanation kisi aur se puch le.

Answer 2

Answer:

Explanation:

1) If the displacement of an object is proportional to the square of the time taken then the body is moving with uniformly accelerated motion as it will follow Newton's second equation of motion for a particular initial velocity, which can be given by, s=ut+21at2

2)Image result for The distance time graph of a body coincides with its time axis. The body must be

The distance time graph of a body coincides with its time axis. The body must be. (a) The distance time graph of a body is parallel to the time axis.

3)From the given v-t graph (see figure), it can be inferred that the object is. Solution : From the given v-t graph ,it is clear that the velocity of the object is not changing with time i.e., the object is in uniform motion.

4) ) having zero acceleration