A body of mass \( 5 \mathrm{~kg} \) is thrown vertically up with a kinetic energy of \( 490 \mat...

Channel:
PW Solutions
Subscribers:
458,000
Published on ● Video Link: https://www.youtube.com/watch?v=zGKHrl5nkYo


Duration: 3:06
5 views
0

A body of mass \( 5 \mathrm{~kg} \) is thrown vertically up with a kinetic energy of \( 490 \mathrm{~J} \). The height at which the kinetic energy of the body becomes half of the original value is
(a) \( 12.5 \mathrm{~m} \)
(b) \( 10 \mathrm{~m} \)
(c) \( 2.5 \mathrm{~m} \)
(d) \( 5 \mathrm{~m} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-11-07In which of the following cases, there is no loss of mechanical energy? I. When a ball is moving...
2022-11-07A body of mass \( 5 \times 10^{3} \mathrm{~kg} \) moving with speed \( 2 \mathrm{~m} / \mathrm{s...
2022-11-07A ball is thrown vertically downwards from a height of \( 20 \mathrm{~m} \) with an initial velo...
2022-11-07Body \( A \) of mass \( 4 m \) moving with speed \( u \) collides with another body \( B \) of m...
2022-11-07Which of the following statement(s) is/are correct for work done to be zero? I. If the displacem...
2022-11-07A ball of \( 0.5 \mathrm{~kg} \) collided with wall at \( 30^{\circ} \) and bounced back elastic...
2022-11-07In a collinear collision, a particle with an initial speed \( v_{0} \) strikes a stationary part...
2022-11-07Two objects of mass \( m \) each moving with speed \( u \mathrm{~m} / \mathrm{s} \) collide at \...
2022-11-07A particle of mass \( m \) moving in the \( x \)-direction with speed \( 2 v \) is hit by anothe...
2022-11-07A moving block having mass \( m \) collides with another stationary block having mass \( 4 \math...
2022-11-07A body of mass \( 5 \mathrm{~kg} \) is thrown vertically up with a kinetic energy of \( 490 \mat...
2022-11-07In a hydroelectric power station, the water is flowing at \( 2 \mathrm{~ms}^{-1} \) in the river...
2022-11-07A machine gun fires 360 bullets per minute, with a velocity of \( 600 \mathrm{~ms}^{-1} \). If t...
2022-11-07A body of mass \( 1 \mathrm{~kg} \) begins to move under the action of a time dependent force \(...
2022-11-07When two bodies collide to each other such that their kinetic energy remains conserved. Their co...
2022-11-07At time \( t=0 \mathrm{~s} \), particle starts moving along \( X \)-axis. If its kinetic energy ...
2022-11-07A \( 2 \mathrm{~kg} \) block slides on a horizontal floor with a speed of \( 4 \mathrm{~ms}^{-1}...
2022-11-07The power of a windmill having blade area equal to \( A \) and wind velocity equal to \( v \) is...
2022-11-07Which of the following represents the unit of power? (a) Pascal (b) Kilowatt-hour (c) \( \operat...
2022-11-07A one kilowatt motor is used to pump water from a well \( 10 \mathrm{~m} \) deep. The quantity o...
2022-11-07A man can do work of \( 600 \mathrm{~J} \) in \( 2 \mathrm{~min} \), then man's power is (a) \( ...


Tags:
pw