An automobile with a mass of 1165 kg accelerates at a rate of 5 m/s² in the forward direction. what is the net force acting on the automobile? n

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s

Coal contains energy. a. light b. kinetic c. chemical d. mechanical