A 3.2 kg object is accelerated from rest to a speed of 63.2 m/s in 57 s. What average force was exerted on the ob- ject during this period of acceleration?
Answer in units of N.

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) ! : )