posted by dan .
Pam has a mass of 33.0 kg and she is at rest on smooth, level, frictionless ice. Pam straps on a rocket pack. The rocket supplies a constant force for 15.0 m and Pam acquires a speed of 60.0 m/s.
(a) What is the magnitude of the force?
(b) What is Pam's final kinetic energy?
- i got th3e second answer need help with the first!
a =v²/2•s = (60)²/2•15 = 120 m/s².
F= m•a = 33•120 = 3960 N.
KE = m•v²/2 = 33•(60)²/2 =59400 J.