Homework Statement
A puck is sliding on flat ground with initial speed to 4 m/s and comes to rest after 2 s. Aprox. which is the coefficent of kinetic friction between puck and ground.
0.9
0.6
0.5
0.4
0.2
I don't know how to solve for this. I ended up in this class accidently and never took...
Homework Statement
A helicopter is initially moving at 9 m/s to the left. It then accelerates at 4 m/s^2 to the right for 2s. How far does it travel during the 2 s.
answers:
26 m to the right
17m to the right
10m to the left
5 m to the left
1 m to the left
If you don't want to give me the...