Two are true, one is not

Exercise and reference answers

Questions

1. False statement

   Friction is conservative

   Statements

   1. Gravity is conservative
   2. Friction is not
   3. Friction is conservative

2. False statement

   Zero net work means the body stops

   Statements

   1. Zero net work means the body stops
   2. Net work changes kinetic energy
   3. Zero net work means constant speed

3. False statement

   It depends on the route travelled

   Statements

   1. Potential energy needs a conservative force
   2. It depends on the route travelled
   3. It depends on position

Explanation