Question

change these to past tense;
-Make two Plasticine dummies to represent people in car accidents
- Put a dummy on the front of each trolley (you should powder the bottoms of the dummy to reduce the stickiness)
-Mark 20cm intervals on the ramp starting from the bottom as shown
-Place trolley B about 40cm in front of the ramp. Place trolley A at the top of the ramp, directly in line with trolley B.
-Release trolley A so that it collides with trolley B. Observe carefully what happens to the dummies in the collision.
-Repeat step 5 two or three times

Answer 1

Answer:

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