A 5-kg projectile is fired over level ground with a velocity of 200 m/s at an angle of 25 ° above the horizontal. Just before it hits the ground its speed is 150 m/s. Over the entire trip the change in the thermal energy of the projectile and air is:

Question

A 5-kg projectile is fired over level ground with a velocity of 200 m/s at an angle of 25 °  above the horizontal. Just before it hits the ground its speed is 150 m/s. Over the entire trip the change in the thermal energy of the projectile and air is:

Quizplus · Accepted Answer

The Answer of A 5-kg projectile is fired over level ground with a velocity of 200 m/s at an angle of 25 °  above the horizontal. Just before it hits the ground its speed is 150 m/s. Over the entire trip the change in the thermal energy of the projectile and air is:

A 5-Kg Projectile Is Fired Over Level Ground with a Velocity