A body is thrown vertically upwards. Which one of the following graphs correctly represents the velocity vs time?
1. | 2. | ||
3. | 4. |
A ball is thrown vertically up (taken as \(+z\)-axis) from the ground. The correct momentum\(\text-\)height (\(p\text{-}h\)) diagram is:
1. | |
2. | |
3. | |
4. | |
A tennis ball is released from a height \(h\) and after freely falling on a wooden floor it rebounds and reaches height \(\frac{h}{2}\). The velocity versus height of the ball during its motion may be represented graphically by:
(graph are drawn schematically and on not to scale)
1. | 2. | |
|
3. | |
4. | |
The velocity (\(v\)) and time (\(t\)) graph of a body in a straight-line motion is shown in the figure. The point \(S\) occurs at \(4.333\) seconds. The total distance covered by the body in \(6\) s is:
1. \(12\) \(\text{m}\)
2. \(\dfrac{49}{12}\) \(\text{m}\)
3. \(11\) \(\text{m}\)
4. \(\dfrac{37}{3}\) \(\text{m} \)
If the velocity-time graph has the shape \(AMB,\) what would be the shape of the corresponding acceleration-time graph?
1. | |
2. | |
3. | |
4. | |
A scooter accelerates from rest for time \(t_1\) at constant rate \(a_1\) and then retards at constant rate \(a_2\) for time \(t_2\) and comes to rest. The correct value of \(\frac{t_1}{t_2}\) will be:
1. \(\frac{a_1+a_2}{a_2}\)
2. \(\frac{a_2}{a_1}\)
3. \(\frac{a_1}{a_2}\)
4. \(\frac{a_1+a_2}{a_1}\)
1. | |
2. | |
3. | 4. |
1. | 2. | ||
3. | 4. |
a. | \(\mathrm{A}\) is faster than \(\mathrm{B}\) |
b. | \(\mathrm{B}\) is faster than \(\mathrm{A}\) |
c. | \(\mathrm{B}\) lives further away than \(\mathrm{A}\) |
d. | \(\mathrm{A}\) live further away than \(\mathrm{B}\) |
1. | (a), (d) |
2. | (b), (c) |
3. | (b), (d) |
4. | (a), (c) |