Physics 20
2013
UNIT 1 ASSIGNMENT #1
1. A little girl takes her dog for a walk around the perimeter of a rectangular city park that has
dimensions of 125 m by 115 m.
a. What is the distance travelled by the girl and dog during the walk?
b. What is the displacement of the girl and dog at the end of the walk.
2. An object is travelling at a constant velocity of 9.8 m/s west. How long will it take this
object to travel 2.5 m?
3. Given the following position time graph of an object moving east, find the velocity of the
object at:
a. 8.0 s
b. 12.0 s
c. 1.0 s
4. Given the following velocity time graph of an object moving south, find the
a. Displacement of the object in 10 s
b. Distance travelled by the object in
10 s.
Mrs. Connor
1
Physics 20
2013
5. Object A travels at a constant velocity of 2.0 m/s east, and object B travels in the same
direction at a constant velocity of 3.0 m/s. If object B starts 1.0 min after object A, how
much time will it take object B to catch object A?
6. The following data were obtained by moving an object at a constant velocity to the right
TIME (S)
DISPLACEMENT (M)
0
0
0.10
0.012
0.20
0.024
0.30
0.035
0.40
0.047
0.50
0.060
0.60
0.072
0.70
0.085
0.80
0.097
0.90
0.108
1.00
0.120
DISPLACEMENT
AVERAGE VELOCITY
DURING TIME
INTERVAL (M)
DURING TIME
INTERVAL (M/S)
a. Complete the data table
b. Draw a position time graph for this data
c. Draw the velocity time graph for this data
d. Use the slope of your position time graph to find the velocity of the object.
e. Use the area under your velocity time graph to find the displacement of the object in
0.95 s.
Mrs. Connor
2
Physics 20
2013
7. Given the following velocity – time graph for an object moving north, find the:
a. Acceleration of the object
b. Displacement of the object in 7.0 s
8. The following data were obtained by moving an object to the right at a constant acceleration
TIME (S)
DISPLACEMENT
FROM T = 0 M
0
0.00
0.10
0.02
0.20
0.09
0.30
0.20
0.40
0.36
0.50
0.56
0.60
0.80
0.70
1.09
DISPLACEMENT DURING
TIME INTERVAL (M)
AVERAGE VELOCITY
DURING TIME
INTERVAL (M/S)
a. Complete the data table
b. Draw a position time graph for these data
c. Draw a velocity time graph for these data
d. Draw an acceleration time graph for these data
e. Find the velocity of the object at 0.30 s and 0.60 s by using your velocity time graph.
Mrs. Connor
3
Physics 20
9.
2013
An object accelerates uniformly from rest. If it travels 26.0 m south and reaches a velocity
of 11.0 m/s south, how long does the object accelerate?
10. An object was travelling at an average velocity of 9.60 m/s to the right. If the time of travel
was 2.70 s, what was the displacement of the object?
11. An object uniformly accelerates at a rate of 1.0 m/s2east. After 27.0 s, the object is displaced
417.2 m east. What velocity did this object reach in this time?
12. An object was uniformly accelerated from rest at a rate of 3.10 m/s2 south. If this object
reaches a velocity of 12.4 m/s south in 4.00 s, what is the displacement of the object while
accelerating?
13. If you drop a coin from a height of 9.50 m above the ground, how fast will it be travelling
when it reaches the ground?
14. When an object is dropped from a height of 24.0 m above the surface of planet Y, it hits the
surface at a velocity of 19.6 m/s down. What is the acceleration of the falling object near tbe
surface of the planet?
15. A rock is thrown vertically downward and takes 0.85 s to reach the ground. If it travels 9.2
m before reaching the ground, what is it’s velocity at impact?
Mrs. Connor
4