A body of constant mass \( m=1 \mathrm{~kg} \) moves under variable force \( F \) as shown. If a....

Channel:
PW Solutions
Subscribers:
453,000
Published on ● Video Link: https://www.youtube.com/watch?v=CaBpZtg9Ljk


Category:
Show
Duration: 4:52
0 views
0

A body of constant mass \( m=1 \mathrm{~kg} \) moves under variable force \( F \) as shown. If at \( t=0, S=0 \) and velocity of the
\( \mathrm{P} \)
body is \( \sqrt{20} \mathrm{~m} / \mathrm{s} \) and the force is always along direction of velocity, then choose the correct option
(1) Velocity of the particle will increase upto \( S=2 m \) and then decrease.
(2) The final velocity at \( S=6 \mathrm{~m} \) is \( 10 \mathrm{~m} / \mathrm{s} \)
(3) The final velocity at \( S=6 \mathrm{~m} \) is \( 4 \sqrt{5} \mathrm{~m} / \mathrm{s} \)
(4) The acceleration is constant up to \( S=2 \mathrm{~m} \) and then it is negative.


📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2024-01-22A slab is subjected to two forces \( \vec{F}_{1} \) and \( \overrightarrow{F_{2}} \) of same mag....
2024-01-22The time dependence of the position of a particle of mass \( m=2 \) is given by \( \vec{r}(t)=2 ....
2024-01-22A small block of mass \( 20 \mathrm{~kg} \) rests on a bigger block of mass \( 30 \mathrm{~kg} \....
2024-01-22A cubical block of side \( 30 \mathrm{~cm} \) is moving with velocity \( 2 \mathrm{~ms}^{-1} \) ....
2024-01-22Shown in the figure is rigid and uniform one meter long \( \operatorname{rod} A B \) held in hor....
2024-01-22Four point masses, each of mass \( m \), are fixed at the corners of a square of side \( l \). T....
2024-01-22A slender uniform rod of mass \( M \) and length \( l \) is pivoted at one end so that it can ro....
2024-01-22The machine as shown has 2 rods of length \( 1 \mathrm{~m} \) connected by a pivot at the top. T....
2024-01-22A block of mass \( m \) lies on wedge of mass \( M \). The wedge in turn lies on smooth horizont....
2024-01-22An object of mass \( M \) is gently placed on a horizontal conveyor belt, which is moving with u....
2024-01-22A body of constant mass \( m=1 \mathrm{~kg} \) moves under variable force \( F \) as shown. If a....
2024-01-22A smooth track in the form of a quarter circle of radius \( 6 \mathrm{~m} \) lies in the vertica....
2024-01-22An object of mass \( M \) is gently placed on a horizontal conveyor belt, which is moving with u....
2024-01-22In the figure shown, the system is released from rest. Find the velocity of block \( A \) when b....
2024-01-22A particle of mass \( m=1 \mathrm{~kg} \) lying on \( x \)-axis experiences a force given by law....
2024-01-22Two inclined frictionless tracks, one gradual and the other steep meet at \( A \) from where two....
2024-01-22In the figure shown, the potential energy (U) of a particle is plotted against its position ' \(....
2024-01-22A block of mass \( m \) is hung vertically from an elastic thread of force constant \( \mathrm{m....
2024-01-22A body is moving unidirectionally under the influence of a source of constant power. Its displac....
2024-01-22A body with mass \( 2 \mathrm{~kg} \) moves in one direction in the presence of a force which is....
2024-01-22When a conservative force does positive work on a body....