Answer:
1) 2.44 joules
2) 7.73 m/s
3) 7.6 joules
Explanation:
Kinetic energy (K) of a particle is:
(1)
with m the mass, and v the velocity
1) Because we already now velocity on A (va) and the mass of the object we can calculate its kinetic energy:
2) Because on B we know mass and kinetic energy we should solve (1) for v and use our values to find the velocity on B:
3) Work-energy theorem states that the change of kinetic energy of an object is equal to the total work done on it, so:
Potential if it is off or kinetic energy when its on
Body composition refers to the amount of fat and muscle that the body has. ... Muscular strength is the amount of force a muscle or group of muscles can exert. true. Muscular endurance is fueled by anaerobic energy.