A particle of mass $m$ is projected with velocity $v$ making an angle of $45^o $ with the horizontal. When the particle lands on the level ground the magnitude of the change in its momentum will be
- [AIPMT 2008]
- A$\sqrt 2 mv$
- B$0$
- C$2mv$
- D$\frac{{mv}}{{\sqrt 2 }}$
Similar Questions
$100 \,g$ of a iron ball having velocity $10 \,m/s$ collides with a wall at an angle ${30^o}$ and rebounds with the same angle. If the period of contact between the ball and wall is $0.1 \,second$, then the force experienced by the ball is ............. $\mathrm{N}$
$100 \,g$ of a iron ball having velocity $10 \,m/s$ collides with a wall at an angle ${30^o}$ and rebounds with the same angle. If the period of contact between the ball and wall is $0.1 \,second$, then the force experienced by the ball is ............. $\mathrm{N}$
When a horse pulls a wagon, the force that causes the horse to move forward is the force
When a horse pulls a wagon, the force that causes the horse to move forward is the force
- [AIIMS 2010]
A body of mass $3\, kg$ hits a wall at an angle of $60^o$ and returns at the same angle. The impact time was $0.2 \;.s$ Calculate the force exerted on the wall
A body of mass $3\, kg$ hits a wall at an angle of $60^o$ and returns at the same angle. The impact time was $0.2 \;.s$ Calculate the force exerted on the wall
- [AIIMS 2013]
A solid horizontal surface is covered with a thin layer of oil. A rectangular block of mass $m =0.4 kg$ is at rest on this surface. An impulse of $1.0 N s$ is applied to the block at time $t =0$ so that it starts moving along the $x$-axis with a velocity $v ( t )= v _0^{ e ^{-1 / \tau}}$, where $v_0$ is a constant and $\tau=4 s$. The displacement of the block, in metres, at $t=\tau$ is. . . . . . . Take $e ^{-1}=0.37$
A solid horizontal surface is covered with a thin layer of oil. A rectangular block of mass $m =0.4 kg$ is at rest on this surface. An impulse of $1.0 N s$ is applied to the block at time $t =0$ so that it starts moving along the $x$-axis with a velocity $v ( t )= v _0^{ e ^{-1 / \tau}}$, where $v_0$ is a constant and $\tau=4 s$. The displacement of the block, in metres, at $t=\tau$ is. . . . . . . Take $e ^{-1}=0.37$
- [IIT 2018]
Below figure shows the position-time graph of a body of mass $0.04\; kg$. Suggest a suitable physical context for this motion. What is the time between two consecutive impulses received by the body ? What is the magnitude of each impulse ?
Below figure shows the position-time graph of a body of mass $0.04\; kg$. Suggest a suitable physical context for this motion. What is the time between two consecutive impulses received by the body ? What is the magnitude of each impulse ?