Two objects collide inelastically. What is true about the kinetic energy and mom
ID: 1540561 • Letter: T
Question
Two objects collide inelastically. What is true about the kinetic energy and momentum during the collision? Neither momentum nor kinetic energy are conserved. Momentum is conserved and kinetic energy not conserve. Momentum is not conserved and kinetic energy is conserved. Both momentum and kinetic energy are conserved. If you push twice as hard against a stationary brick wall, the amount of work you do Doubles is cut in half Remains constant but non-zero remains constant at zero Two paths lead to the top of a big hill. One is steep and direct, while the other is twice as long hut less steep. How much more potential energy would you gain taking the longer path? The same twice as much half as much you gain no PE in either caseExplanation / Answer
1. The correct option is B. In inelastic collisions the momentum is conserved but the kinetic energy is lost in inelastic collision and hence the kinetic energy is not conserved and it is converted to some other forms of energy.
2. The correct option is D. Because there is no displacement and hence the work done is zero.
3. The correct option is A. That is the potential energy gained is same because gravitational force is conservative force and hence the work done depends on the final and initial position and not on path taken.