A block of mass 100 gm slides on a rough horizontal surface. If the sp – McqOptions

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1.	A block of mass 100 gm slides on a rough horizontal surface. If the speed of the block decreases from 10 m/s to 5 m/s, the thermal energy developed in the process is [UPSEAT 2002]
A.	3.75 J
B.	37.5 J
C.	0.375 J
D.	0.75 J
Answer» B. 37.5 J

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