A 17 kg curling stone is thrown along the ice with an initial speed of 4.0 m/s and comes to rest in 10 s. Calculate the work done by friction. Need to calculate force and distance.

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )