A toy boat moves horizontally in a pond. The horizontal position of the boat in meters over time is shown below.
Position
(meters)
15+
12+
9+
6+
3+
Time
(seconds)
↑
4
8
12
16 20 24
-3+
-6+
-9
-12+
-15-
What is the displacement of the boat between 0s and 16 s?

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

What is friction? how does it affect the motion of an object?

What organization and environment is described above?