PHY250L_ESL_V3
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Lab 3: Newton's Laws
Question 1
Correct
2.00 points out
of 2.00
Question 2
Incorrect
0.00 points out
of 2.00
Question 3
Incorrect
0.00 points out
of 2.00
Question 4
Correct
2.00 points out
of 2.00
Question 5
Correct
2.00 points out
of 2.00
Started on
Saturday, December 16, 2023, 2:48 PM
State
Finished
Completed on
Saturday, December 16, 2023, 2:55 PM
Time taken
7 mins 14 secs
Grade
6.00
out of 10.00 (
60
%)
A roller coaster is at the inside top of a circular loop of radius R = 100 m. How fast must the rollercoaster be going if it is not to fall off?
Select one:
a. Incomplete information
b. 981 m/s
c. 31.3 m/s d. 0 m/s
A person of 50 kg with a bag of 10 kg stood on a bathroom scale in the elevator of mass 2000 kg. (Take g=10 ). Find the tension in the cable attached to the
elevator if it is accelerating downward with 5
.
Select one:
a. 300 N b. 10300 N
c. 10000 N
d. 0 N
When the net force acting on an object is zero, its
Select one:
a. Acceleration is zero
b. Velocity is zero
c. Velocity is constant d. Velocity is zero or velocity is constant
If forces of 20 N and 30 N act in opposite directions, what is the net force?
Select one:
a. 20 N
b. 10 N c. 50 N
d. 30 N
True or False: A 6 kg copper block has three times the inertia of a 2 kg copper block.
Select one:
a. False
b. True My Account
