1. Jonathan is coasting on his bicycle down a hill,after 3 s,his speed is 10 m/s,after 8 s,his speed id 25 m/s.What is his accel
eration during this time? 2. A car is moving at 14 m/s.After 30 s, it's speed increased to 20 m/s.What was the acceleration during this time?
3. Luke's younger sister is riding her tricycle in a straight line. After 3 s, her speed is 0. 5 m/s. After 5 s, her speed is 1. 5 m/s.What is her acceleration during this time?
Set equations for both containers: Condition one: $y=2x$ Condition two: $(y-3)=4.5(x-2)$ plug in $y$ from condition one into the second equation: $2x-3=4.5x-9$ simplify gives: $2.5x=6$ $\boxed{x=2.4}$ $\boxed{y=4.8}$
