Homework Help: physics

Posted by felipe on Thursday, January 10, 2013 at 10:19pm.

Spaceman Spiff's space box wights 60N. its engine exerts a +312N of force at lift-off. what is the acceleration when it lifts off

physics - drwls, Friday, January 11, 2013 at 2:10am
Have you learned Newton's
F = m a equation?

It can be rewritten a = F/m

F = force = 312 N
m = 60N/g = 6.12 kg
(Weight in N must be converted to mass in kg)

a = 51 m/s^2

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