This is аn оriginаl exаm questiоn by Prоf Kay Han. It is forbidden to photograph, upload, download, copy, or share this problem with anyone, or to post it to any website. A chinchilla is running with a velocity v. A lab rat with half the mass is also running with v. Compare the kinetic energy.
This is аn оriginаl exаm questiоn by Prоf Kay Han. It is forbidden to photograph, upload, download, copy, or share this problem with anyone, or to post it to any website. A constant force is exerted on a cart that is initially at rest on a frictionless air track. The force acts for a short time interval and gives the cart a final speed. To reach the same speed using a force that is three times as big, the force must be exerted for a time interval that is