Question 6 A ball with an initial speed of 3 m/s rolls for 5 seconds. The acceleration of the ball is 4.2 m/s2. What is the final speed of the ball?
Your
O 1.263 m/s
24 m/s
17,6 m/s
55.8 m/s2

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

What part of the ear is names after tools, such as the hammer and the anvil?

What does the law of conservation of mass state?