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### Block on a Slope

(a) Start with block 1. It starts at rest, then accelerates a distance

of 16 m in a time of 4.2 seconds. Use equation from kinematics:

Acceleration of block 2 is just the same as acceleration of block

1! All objects fall with approximately the same acceleration.

(b) We have a relation between final and initial velocities, :

and so we get .

(c) Half the time is spent coming down from the highest point. So

the time to "fall'' is 2.1s. Distance traveled is again from

kinematic equation:

.