Plenary worksheet
Plenary worksheet
Tuesday, July 06, 2010
3:04 PM
Question 1
a) 12 seconds
b) d=100m, t=12s, v=d/t, v=100/12, v=8.3m/s
c) A- the runner is accelerating, B – the runner is at a constant speed, C – The runner is decelerating, D – The runner has topped.
d) The speed is greatest in A, because the runner is accelerating the most.
e) 124m
Question 2
a) 1.5m/s
b) 1s
c) v=1.5m/s, t=1s, a=∆v/∆t, a=1.5/1, a= 1.5m/s2
d) d=1/2bxh, d=0.5x1.5, d=0.75m
e) d=1/2bxh, d=1x1.5, d=1.5m
Question 3
a)
b) 35s
c) 10m/s
d) v=15m, t=15s, a=∆v/∆t, a=15/15, a= 1m/s2
e) v=20m/s, t=20s, d=s x t, d=20x20, d=400m
