Multiple Choice
An object attached to an ideal massless spring is pulled across a frictionless surface.If the spring constant is 45 N/m and the spring is stretched by 0.88 m when the object is accelerating at what is the mass of the object?
A) 20 kg
B) 17 kg
C) 22 kg
D) 26 kg
Correct Answer:

Verified
Correct Answer:
Verified
Q43: How long will it take a 7.08
Q44: In the figure,two boxes,each of mass 24
Q45: In the figure,two identical ideal massless springs
Q46: A 1000.0 kg car is moving at
Q47: A 1000 kg car experiences a net
Q49: A force <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6394/.jpg" alt="A force
Q50: Three forces,F<sub>1</sub> = 20.0 N,F<sub>2</sub> = 40.0
Q51: Two objects,one of mass m and the
Q52: If electricity costs 6.00¢/kWh (kilowatt-hour),how much would
Q53: An object is acted upon by a