l.) A race car accelerates from 21 m/s to 54 m/s in 2.67 seconds. Determine the acceleration of the car. SKARS checklist: Sketch: _ Knowns: _ Assumptions: _ Relationships: _ Solution: _ 2.) You hold a small pebble over a well, and after a moment, you drop it into the well. The pebble hits water and makes a splashing sound after 5.05s. Determine how deep into the well the water is. (Remember that the acceleration of gravity on earth is -9.80 m/sA2). MAKE YOUR OWN TABLE AND CHECKLIST FOR THIS ONE 3.) A 0.17kg cue ball is struck with a force of 0.1 N, and it has an acceleration of -O.59m/sl\\2 due to friction. If it starts with a velocity of 2m /s, how fast is the ball still moving when it hits the side of the table 0.4m away? REMEMBER: F = mo > (You can find v,- from the force of the strike!) Kinematic Equations Review: Please fill in the chart below to remind yourself of what 4 variables are involved in each equation, which will help you decide which equation to use: d 1_. _. 2 Ax = 5(1); + 120M 1 I A} = 17,-At + EEMZ Ax = vat EaAt I 5,2 = 5,? + 25.33 Remember: SKARS Method (Sketch, Knowns, Assumptions, Relationships, Solution). Acceleration is always constant with these equations. To use one of these equations, you will need 3 variables and will look for the 4th Pick the equation that doesn't care about the variable your problem ignores. Usually, 'positive' is upward or forward, whereas 'negative' is down or back