http://www.physicsclassroom.com/class/energy/u5l1a7.gif
Diagram C:
W = F x d cos(theta)
Theta = 0
W = F x d
W = ma x d
W = 5(15)a
W = 75a
a = 9.8
W = 735 Joules.
The question stated that the particle was travelling at constant speed. So why is the acceleration 9.8 m/s^2? Doesn't constant speed mean no acceleration? Or is it because it is getting pulled up against gravity that it changes?
Diagram C:
W = F x d cos(theta)
Theta = 0
W = F x d
W = ma x d
W = 5(15)a
W = 75a
a = 9.8
W = 735 Joules.
The question stated that the particle was travelling at constant speed. So why is the acceleration 9.8 m/s^2? Doesn't constant speed mean no acceleration? Or is it because it is getting pulled up against gravity that it changes?