Per NCERT, a fielder throws a cricket ball that hits the wickets and knocks them down. The ball's ability to displace the wickets demonstrates which fact?
AThe ball had gained KINETIC ENERGY from the work the fielder did to throw it — and transfers some of that energy to the wickets on impact
BThe ball was at higher temperature than the wickets
CThe ball weighed more than the wickets
DThe wickets attracted the ball magnetically
Answer & Solution
Correct answer: A. The ball had gained KINETIC ENERGY from the work the fielder did to throw it — and transfers some of that energy to the wickets on impact
Per NCERT §7.2, the ball acquires KE from the work done on it and transfers energy to the wickets. The other options misstate.
Related questions
A crate dragged across a rough floor loses mechanical energy because friction is:Conservation of mechanical energy is the form the work-energy theorem takes when the forceCalculating work for a conservative force is easier than for a complicated path because itA force acting entirely perpendicular to an object's displacement does how much work?Mechanical energy transferred into or out of a system equals the work done by an external Winding up a toy or an old-fashioned watch stores energy by doing work against its:Which three energy examples are named together?The kinetic energy in the work-energy theorem is specifically the translational kinetic en