College Physics › Mechanics
Which of these forces is identical to a normal force?
How far can a person jump while running at and a vertical velocity of
?
Fluid flows into a pipe with a diameter of at a rate of
. If the other end of the pipe has a cross sectional area of
, what is the speed of the fluid as it exits the pipe?
A baseball has a mass of , but it weighs
when completely submerged in water. What is its volume assuming that the density of water is
?
Suppose a box is being dragged across the floor due to a rope being pulled on at a
angle from the side, as shown in the picture below.
If the tension in the rope is and the box accelerates to the right at
, what is the coefficient of kinetic friction?
A pendulum is made up of a small mass that hangs on the end of a
long string of negligible mass. The pendulum is displaced by
and allowed to undergo harmonic motion. What is the angular frequency of the resulting motion?
For a simple harmonic motion governed by Hooke's Law, , if
is the period then the quantity
is equivalent to which of the following?
A pendulum is made up of a small mass that hangs on the end of a
long string of negligible mass. The pendulum is displaced by
and allowed to undergo harmonic motion. What is the angular frequency of the resulting motion?
A toy car is set up on a frictionless track containing a downward sloping ramp and a vertically oriented loop. Assume the ramp is tall. The car starts at the top of the ramp at rest.
What additional piece of information is necessary to calculate the maximum height of the loop if the car is to complete the loop and continue out the other side?
For a simple harmonic motion governed by Hooke's Law, , if
is the period then the quantity
is equivalent to which of the following?