Semester Final Partial Review (Ch. 1-3)
1. Convert 451 yards/min into inches/Ms
2. A bicyclist travels at a constant speed of 12.0m/s. How long will it take him to travel 86.3m?
3. A ball is shot at 14.5m/s at an angle of 50.0˚ above the horizontal, which is north. (One picture is fine.)
(Include direction in a, b, and c!)
a) What is its initial vertical velocity?
b) What is its vertical velocity at the top of its path?
c) What its horizontal velocity at the top of its path?
d) How long will it take it to travel 15.0m north?
e) How high will it be in part d)?
f) If it is shot from ground level, when will it land on the ground?
4. A sprinter starting at rest accelerates uniformly at 3.00m/s2 for a distance of 10.0m. How long does it take him
to travel the 10.0m?
5. a) What is the acceleration of a 5.00kg object if a person pushes straight up on it with a force of 65.0N?
b) What will be its acceleration after it leaves the person’s hand?
c) A 2.00kg object is thrown straight down at 10.0m/s. After it leaves the person’s hand, what is its
acceleration?
6. a) Draw the d vs. t and the v vs. t graphs for constant acceleration.
b) Draw the d vs. t and the v vs. t graphs for constant velocity.
7. A 101kg person is in an elevator accelerating upward at 2.00m/s2. What is the normal force on the person?
8. If an object has an acceleration of zero, what is the object doing?
Semester Final Partial Review (Ch. 1-3)
1. Convert 451 yards/min into inches/Ms
2. A bicyclist travels at a constant speed of 12.0m/s. How long will it take him to travel 86.3m?
3. A ball is shot at 14.5m/s at an angle of 50.0˚ above the horizontal, which is north. (One picture is fine.)
(Include direction in a, b, and c!)
a) What is its initial vertical velocity?
b) What is its vertical velocity at the top of its path?
c) What its horizontal velocity at the top of its path?
d) How long will it take it to travel 15.0m north?
e) How high will it be in part d)?
f) If it is shot from ground level, when will it land on the ground?
4. A sprinter starting at rest accelerates uniformly at 3.00m/s2 for a distance of 10.0m. How long does it take him
to travel the 10.0m?
5. a) What is the acceleration of a 5.00kg object if a person pushes straight up on it with a force of 65.0N?
b) What will be its acceleration after it leaves the person’s hand?
c) A 2.00kg object is thrown straight down at 10.0m/s. After it leaves the person’s hand, what is its
acceleration?
6. a) Draw the d vs. t and the v vs. t graphs for constant acceleration.
b) Draw the d vs. t and the v vs. t graphs for constant velocity.
7. A 101kg person is in an elevator accelerating upward at 2.00m/s2. What is the normal force on the person?
8. If an object has an acceleration of zero, what is the object doing?