Question

Fill in the blanks:

1. When s-t graph is parallel to x-axis, the body is____________.

2. When v-t graph is parallel to x-axis, the body is____________.

3. The slope of v-t graph for a body in uniformly accelerated motion is____________.

4. The slope of displacement-time graph for a car parked in a parking area is____________.

5. Acceleration is a____________quantity.​

Answer 1

Answer:

1. When S-T graph is parallel to x-axis the body is said to be at rest since the slope of S-T is zero.

2. When v-t graph is parallel to x-axis the body is moving in a constant velocity.

3. Velocity of an object in uniform circular motion is constant. A car moving on a crowded road with a number of traffic red signals is in non-uniform motion. Displacement of a body can be positive or zero, but never negative

4. distance remains same while time increases. A horizontal line on graph. A horizontal line has 0° slope.

5. Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

Answer 2

Answer:

1) moving uniformly

2) not accelerating

3) positive

4) zero

5) vector