Monday, 15 February 2016

4 kinematics questions

-What is the difference between distance-time graph and displacement-time graph?

 The gradient for a distance time graph cannot be negative, as distance travelled cannot be negative. A displacement time graph can be negative to show the direction travelled.

-What is the difference between speed-time graph and velocity-time graph?
Velocity time graph can have a negative gradient unlike speed-time graph. The gradient for velocity time graph will show the direction of movement.

-How to deduce distance-time graph and speed-time graph.
Distance time graph will never have a x intercept.

-How to deduce acceleration time-graph  from velocity time graph.
When there is a gradient in the velocity time graph, it represent acceleration or decceleration