Impulse Momentum Relationship - L18-19

Question 1

inertia

Answer 1

resistance to change in motion state.

Question 2

momentum

Answer 2

L. quantify of an objects speed. mass x velocity.

Question 3

what do we have to do to change to change the state of motion.

Answer 3

we have to make a bigger force than the resistance force.

Question 4

what is impulse

Answer 4

Impulse is the change in momentum of an object resulting from a force applied over a period of time. It measures how a force affects an object’s motion.

Question 5

a change in velocity =

Answer 5

acceleration or deceleration

Question 6

impulse momentum theorem

Answer 6

impulse = change in momentum. relationship between the force applied to an object over a period of time and the resulting change in its momentum

Question 7

what is the most important aspect for long jump?

Answer 7

speed of run.

Question 8

when velocity is the most important performance outcome how can we maximise performacne

Answer 8

by maximising GRF

Question 9

how does the effect of a force depend on

Answer 9

the point and direction of application with respect to the CoM.

Question 10

does a force through the CM of a ball generate linear motion?

Answer 10

yes, a force through CM generates linear motion only.

Question 11

what is torque

Answer 11

turning effect of a force. (the effectiveness of a force)

Question 12

what is torque influenced by

Answer 12

the magnitude of the force, line of action of force (direction) and point of application on the force.

Question 13

three types of motion

Answer 13

translation/linear, rotation and general.

Question 14

is CCW torque + or -

Answer 14

Neg and CW is +