Figure shows velocity-time graph for various situations. What does ea

1.	Figure shows velocity-time graph for various situations. What does each graph indicate?
Answer» 1. Initial velocity, u > 0. Also, velocity is constant with time. Hence, acceleration is zero. 2. As finite initial velocity is increasing with time, acceleration, a > 0 and is constant. 3. Initial velocity, u = 0. Velocity is increasing with time so, acceleration a is positive. But it is decreasing in magnitude with time. 4. Initial velocity, u = 0. Velocity is linearly increasing with time. Hence, starting from rest acceleration is constant. 5. Initial velocity, u = 0. Acceleration and velocity is increasing with time. 6. Initial velocity u > 0. Velocity decreases and ultimately comes to rest. Hence, acceleration a < 0.

Figure shows velocity-time graph for various situations. What does each graph indicate?

Answer»

1. Initial velocity, u > 0. Also, velocity is constant with time. Hence, acceleration is zero.

2. As finite initial velocity is increasing with time, acceleration, a > 0 and is constant.

3. Initial velocity, u = 0. Velocity is increasing with time so, acceleration a is positive. But it is decreasing in magnitude with time.

4. Initial velocity, u = 0. Velocity is linearly increasing with time. Hence, starting from rest acceleration is constant.

5. Initial velocity, u = 0. Acceleration and velocity is increasing with time.

6. Initial velocity u > 0. Velocity decreases and ultimately comes to rest. Hence, acceleration a < 0.