Question

Displacement includes both distance and direction.
a. true
b. false

Answer 1

True

Step-by-step explanation:

Displacement can be considered as a distance with direction when an object moves in straight line. Distance is a scalar quantity which means it has only magnitude but lack of direction. Magnitude basically means how far or how long from the initial startup (e.g 7 km) is magnitude.

On the other hand, displacement is a vector quantity which means it has both magnitude and direction. We can use a symbol of negative and positive to determine the direction. Generally, up is positive; down is negative; west is negative and east is positive but it depends on some case where down can be positive (e.g projectile motion) but you can specify or modify how you want your direction to be, make sure to calculate it right though.

Displacement means changes in position which can be expressed as
`\displaystyle{p_2 -p_1}` where
`\displaystyle{p_2}` is final position/destination and
`\displaystyle{p_1}` is initial position/destination. Displacement does include distance but maybe not total distance if we go for a right-triangle distance. However, displacement includes total distance if an object moves in a straight point. (e.g moving to 20 km straight) - both distance and displacement are same in this case.