1.A student is pushing a 30 kg desk across a floor at a
constant speed of 1 m/s. How
much work, tothe nearest whole joule, mustthe student do on the desk to change the speed to 6 m/s?

2. A 5 kg stone falls from the
top of a cliff and strikes the
ground at a speed of 88.5 m/s.
What is
the height of the cliff?

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.