Centripetal force on an object in circular motion is always directed in which direction?
a. toward the center of the circle
b. away from the center of the circle
c. in the direction of the object's velocity
d. in a direction opposite to the object's velocity

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?