A man of mass 60kg slide over a snow, given coefficient between the snow and the ski be 0.3. Determine distance does the man ski in order to melt 750g of snow
A man of mass 60kg slide over a snow, given coefficient between the snow and the ski be 0.3. Determine distance does the man ski in order to melt 750g of snow
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Question
A man of mass 60kg slide over a snow, given coefficient between the snow and the ski be 0.3. Determine distance does the man ski in order to melt 750g of snow
Expert Solution
Step 1
When the man starts sliding on the ice frictional force starts acting on him and due to frictional force the man looses his energy which is being used in melting ice.
We know latent heat of ice at 0 ⁰C is approx L=334J/g
Therefore energy required to melt 750g of ice is
W=334x750=250500J ...............(1)
Therefore the same amount of energy must be spent by frictional force.
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