Laws of MotionHard
Question
A block is sliding down on an inclined plane of slope $\theta$ and at an instant $t = 0$ this block is given an upward momentum so that it starts moving up on the inclined surface with velocity $u$. The distance $(S)$ travelled by the block before its velocity become zero, is $\_\_\_\_$ .
(g = gravitational acceleration)
Options
A.$\frac{u^{2}}{4gsin\theta}$
B.$\frac{2u^{2}}{gcos\theta}$
C.$\frac{u^{2}}{\sqrt{2}gcos\theta}$
D.$\frac{u^{2}}{2gcos\theta}$
Solution
$$\begin{matrix} & a = - gsin\theta \\ & V^{2} = U^{2} + 2as \\ & 0 = u^{2} - 2gsin\theta.s \\ & s = \frac{u^{2}}{2gsin\theta} \end{matrix}$$
NTA Ans- (4)
Ans- (Bonus)
Create a free account to view solution
View Solution FreeMore Laws of Motion Questions
A body of mass 40 grams is moving with a constant velocity 2 cm/sec. on a horizontal frictionless table. The force on th...for show situation letN1= Normal reaction between A&B N2= Normal reaction between B&Cwhich of the following statement (s...A body of mass 2 kg is being dragged with uniform velocity of 2 m/s on a rough horizontal plane. The coefficient of fric...A 5 kg. mass is accelerated from rest to 60 m/s in 1 sec. What force acts on it : -...Two block A and B of masses m & 2m respectively are held at rest such that the spring is in natural length. What is the ...