Asked • 10/25/19

A projectile of mass 5.0 kg is shot

A projectile of mass 5.0 kg is shot horizontally with an initial speed of 17 m/s from a height of 25.0 m above a flat desert surface. For the instant before the projectile hits the surface, calculate each of the following: 

a) the work done on the projectile by gravity (1.23x103 J)

b) the change in kinetic energy since the projectile was fired. (1.23x103 J)

c) the final kinetic energy of the projectile. (1.9x103 J)

d) the final speed of the projectile (28 m/s)

1 Expert Answer


William W. answered • 10/26/19

5.0 (744)

Experienced Tutor and Retired Engineer

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