A uniform free rectangular steel plate is heated from 273 to 373 kelvin. The initial area of the plate is 15 sq. cm. What is the shift of the centre of mass?

Category: QuestionsA uniform free rectangular steel plate is heated from 273 to 373 kelvin. The initial area of the plate is 15 sq. cm. What is the shift of the centre of mass?
Editor">Editor Staff asked 1 year ago

A uniform free rectangular steel plate is heated from 273 to 373 kelvin. The initial area of the plate is 15 sq. cm. What is the shift of the centre of mass?
 
(a) 0 cm
 
(b) 1 cm
 
(c) 2 cm
 
(d) 3 cm
 
I have been asked this question in my homework.
 
The query is from System of Particles in portion System of Particles and Rotational Motion of Physics – Class 11
Select the correct answer from above options 
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1 Answers
Editor">Editor Staff answered 1 year ago

Correct choice is (a) 0 cm
 
Easiest explanation: Since the plate is free, the net force on the plate is zero. So, there will be no shift in the centre of mass of the plate, i.e., the shift in the centre of mass of the plate will be 0 cm.


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