A plank of mass \( 10 \mathrm{~kg} \) and a block of mass \( 2 \mathrm{~kg} \) are placed on a h... VIDEO
A plank of mass \( 10 \mathrm{~kg} \) and a block of mass \( 2 \mathrm{~kg} \) are placed on a horizontal plane as shown in the figure. There is no friction between plane and plank. The coefficient of friction between block and plank is \( 0.5 \). A force of \( 60 \mathrm{~N} \) is applied on plank horizontally. In first \( 2 \mathrm{~s} \), the work done by friction on the block ishttps://bit.ly/YTAI_PWAP https://www.pw.live
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