P2.1.2 forces and motion

Question 1

Calculating speed from a distance- time graph

Answer 1

It’s just gradient-

Speed= gradient =vertical/ = 500
Horizontal 30 =16.7m/s

Question 2

Speed and velocity are both how fast your going.

Speed is just how fast your going( e.g 30mph or 20 m/s ) with no regard to the direction. Velocity however must also have the direction specified, e.g 30mph north or 20m/s 060*

Answer 2

Distance time graphs

1) gradient= speed
2) flat sections are where it’s stationary-stopped
3) straight uphill or downhill travelling at steady speed
4) the steer the graph the faster it’s going