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2. A projectile of mass m = 0.500 kg is launched from the ground with the...

2. A projectile of mass m = 0.500 kg is launched from the ground with the angle Θ = 60 degrees and V0 = 40.0 m/s. Here we ignore air friction.

(a) calculate the initial mechanical energy E = KE + PE

E=

(b) What is the kinetic energy of the projectile when it reaches the maximum height h?

Speed at the top: v =

KE =

(c) What is the potential energy of the projectile when it reaches the maximum height h?

PE=

(d) Calculate the maximum height h

h max=

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