Lab 2 Quiz pt2
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Date
Jan 9, 2024
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PHY250L_ESL_V2
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Lab 2: Kinematics
Question 1
Correct
10.00 points out
of 10.00
Question 2
Correct
10.00 points out
of 10.00
Started on
Friday, July 28, 2023, 12:34 AM
State
Finished
Completed on
Friday, July 28, 2023, 12:52 AM
Time taken
18 mins 25 secs
Grade
50.00
out of 50.00 (
100
%)
What is the velocity of an airplane flying at 300 mph if it encounters a 60 mph head wind?
Select one:
a. 270 mph
b. 240 mph c. 330 mph
d. 360 mph
An object with an initial velocity 4i+3j is travelling with an acceleration 0.3i+0.4j. What
would be its speed after 15 seconds?
Select one:
a. 12 m/s
b. 8.5i+9j
c. 12.38 m/s d. 5 m/s
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Question 3
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Question 4
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10.00 points out
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Question 5
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10.00 points out
of 10.00
Acceleration…
Select one:
a. Is always equal to instantaneous speed.
b. Is a scalar quantity.
c. Can never be negative.
d. Is the rate at which velocity changes. Calculate the instantaneous velocity of a particle moving in a straight line with
at the time t = 5 sec.
Select one:
a. 5 m/s
b. 120 m/s
c. 48 m/s
d. 43 m/s A marble is fired horizontally off a countertop. At the same time, a marble resting on the
edge of the counter falls off straight towards the floor. Which marble will hit the floor first
(assume both marbles are fired with the same force)?
Select one:
a. The marble that fell off the edge of the counter top.
b. Both marbles will hit the ground at the same time. c. There is not enough information to determine which one will hit the ground first.
d. The marble that was fired off of the counter top.
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