A stone of 1kg is thrown with a velocity of 20m/s across the frozen surface of a lake and comes to rest after traveling s distance of 50 m. What is the forco of friction between the stone and the ice
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force = mass * acceleration
to find acceleration
v^2 = u ^2 +2as
-400 = 2* a*50
-100 = acceleration
force = 1*-100
= 100 newtons in opposite direction or -100 nwton
to find acceleration
v^2 = u ^2 +2as
-400 = 2* a*50
-100 = acceleration
force = 1*-100
= 100 newtons in opposite direction or -100 nwton
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