Three spring scales are attached along a straight line as shown. The scale on the left is attached to a wall, A force of 15 N is applied to the scale at the right. What is the reading on the middle scale? 15 N A. ON B. 5N C. 45 N D. 15 N
Three spring scales are attached along a straight line as shown. The scale on the left is attached to a wall, A force of 15 N is applied to the scale at the right. What is the reading on the middle scale? 15 N A. ON B. 5N C. 45 N D. 15 N
Related questions
Question
6
Transcribed Image Text:stiQuestion 10:
Three spring scales are attached along a straight line as
shown. The scale on the left is attached to a wall.A
force of 15 N is applied to the scale at the right. What
is the reading on the middle scale?
15 N
A. ON
B. SN
C. 45 N
D. 15 N
rvOuestion 11:
A rock is whirled on the end of a string in a horizontal circle of radius r with a constant speed v. If the radius of
the circle is doubled, while the speed remains v, what happens to the centripetal acceleration of the rock? HINT:
we have talked about how to do this; write the original expression and then write another one with the changes
and compare both.
A. It increases by a factor 4
B. It remains the same
C. It increases by a factor 2
D. It decreases by a factor 2
E. It decreases by a factor 4
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
