ex#4

Hypothesis
The force will be greater to maintain the initial speed of the cart.
Materials
Cart
100 gram
weight pulling scale
(1 Pull)-(Slow)=0.2
(2 Pull)-(Fast)=0.5
(3 Pull)-(Turning)=0.5.
Maintaining initial speed.
2.It takes more force turning and changing directions.
3. Yes
4.No