In the motion of a projectile freely under gravity, its
In the motion of a projectile freely under gravity, its
- A
Total energy is conserved
- B
Momentum is conserved
- C
Energy and momentum both are conserved
- D
None is conserved
Similar Questions
A ball is thrown from ground at an angle $\theta$ with horizontal and with an initial speed $u_0$. For the resulting projectile motion, the magnitude of average velocity of the ball up to the point when it hits the ground for the first time is $V _1$. After hitting the ground, ball rebounds at the same angle $\theta$ but with a reduced speed of $u_0 / \alpha$. Its motion continues for a long time as shown in figure. If the magnitude of average velocity of the ball for entire duration of motion is $0.8 V _1$, the value of $\alpha$ is. . . . . .
- [IIT 2019]
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- [NEET 2022]
Two stones having different masses $m_1$ and $m_2$ are projected at an angle $\alpha$ and $\left(90^{\circ}-\alpha\right)$ with same speed from same point. The ratio of their maximum heights is
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