An object of mass 10 ,kg is projected from ground with speed 40 ,m / s at an angle 60^{circ} with ho

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3-2.Motion in Plane

easy

An object of mass $10 \,kg$ is projected from ground with speed $40 \,m / s$ at an angle $60^{\circ}$ with horizontal. The rate of change of momentum of object one second after projection in SI unit is ........ [Take $g=9.8 \,m / s ^2$ ]

A$73$

B$98$

C$176$

D$140$

Solution

(b) Force $=\frac{\Delta p}{\Delta t}$, force remains constant $=m g$
$\Rightarrow 10 \times 9.8 \Rightarrow 98 \,N$
At $t=1$, particle is at its maximum height.

Standard 11

Physics

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medium

An object of mass $10 \,kg$ is projected from ground with speed $40 \,m / s$ at an angle $60^{\circ}$ with horizontal. The rate of change of momentum of object one second after projection in SI unit is ........ [Take $g=9.8 \,m / s ^2$ ]

Solution

Similar Questions

The horizontal range is four times the maximum height attained by a projectile. The angle of projection is ……… $^o$

A grasshopper can jump maximum distance $1.6\; m$. It negligible time of the ground. How far can it go in $10 \;s$?

A projectile is thrown at an angle $\theta$ such that it is just able to cross a vertical wall at its highest point as shown in the figure.The angle $\theta$ at which the projectile is thrown is given by

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