Question #3b4ab

2 Answers
A08
Jun 22, 2017

Bee moves along the circumference of the bowl.

Circumference#=2pir#
#=2xx22/7xx7=44cm#
Speed #=11cm cdot s^-1#

Distance moved in #4s="Speed"xx"Time"#
#=11xx4=44cm#

We see that in #4s# bee has completed one full circle of the rim of the bowl. It has returned to initial position.
#=># Displacement #=0#

JS
Jun 22, 2017

The thing to take away from this problem is that distance is a scalar, a quantity that has only magnitude. Displacement, on the other hand, is a vector, a quantity that has both magnitude and direction.

As was mentioned, since the bee ended up where it started, it's displacement is zero.

Related questions
Impact of this question
811 views around the world
You can reuse this answer
Creative Commons License