Out of the three speed$-$time graphs shown below
Identify the graph for the following cases.
$(i)$ A ball thrown vertically upwards and returning to the hand of the thrower ?
$(ii)$ A body decelerating to a constant speed and accelerating.
Out of the three speed$-$time graphs shown below
Identify the graph for the following cases.
$(i)$ A ball thrown vertically upwards and returning to the hand of the thrower ?
$(ii)$ A body decelerating to a constant speed and accelerating.
$(i)$ Graph $(a)$ shows that the speed of a body decreases with time becomes zero and then again starts increasing. This graph, therefore, represents the case of a ball thrown vertically upwards and then caught by the thrower. Initially, the ball is thrown with some speed. As the ball rises up its speed decreases at a constant rate, becomes and zero at maximum height. The ball then falls with a uniform acceleration till its speed becomes equal to speed of projection.
$(ii)$ Graph $(c)$ represents deceleration of the body to some constant speed, and then accelerating after sometime.
Similar Questions
Can you suggest about the kind of motion of a body from following distance$-$time graphs ?
Can you suggest about the kind of motion of a body from following distance$-$time graphs ?
Two stones are thrown vertically upwards simultaneously with their initial velocities $u _{1}$ and $u _{2}$ respectively. Prove that the heights reached by them would be in the ratio of $u_{1}^{2}: u_{2}^{2}$ (Assume upward acceleration is $-\,g$ and downward acceleration to be $+g$.
Two stones are thrown vertically upwards simultaneously with their initial velocities $u _{1}$ and $u _{2}$ respectively. Prove that the heights reached by them would be in the ratio of $u_{1}^{2}: u_{2}^{2}$ (Assume upward acceleration is $-\,g$ and downward acceleration to be $+g$.
How can you find the distance travelled by body in uniform motion from the velocity$-$time graph ?
How can you find the distance travelled by body in uniform motion from the velocity$-$time graph ?
Write true or false for the following statements
Velocity and speed are measured in different units.
Write true or false for the following statements
Velocity and speed are measured in different units.
What conclusion can you draw from the displacement$-$time graph of a body as shown below ?
What conclusion can you draw from the displacement$-$time graph of a body as shown below ?