Question

displacem
2. Joseph Jogs from one end A to the one
ols
300 m road in 2 minutes 30 seconds and then tums ar
and fogs 100 m back to potrat C in another 1 minute. What
Joseph's average speeds and velocities in jogging (a) from
to school. computes the average spes
Band (b) from A to C?​

Answer 1

Answer:

monolith is a geological feature consisting of a single massive stone or rock, such as some mountains. Erosion usually exposes the geological formations, which are often made of very hard and solid igneous or metamorphic rock.

Answer 2

From pont A to B

Distance covered=300m

Displacement=300m

Time taken = 2 min 30 sec

= (2×60) + 30 = 150 sec

Average Velocity =

Average speed =

$\frac{distance \: \: covered}{time \: \: taken}$

$\frac{300}{150} \\ \\ = 2 \: m \: \: per \: \: sec$

=2 m/sec

From point A to C

Distance covered=300+100=400m

Displacement=300−100=200m

Time taken=3 min 30 sec

= (3×60)+30 = 210 sec

Average speed =

$\frac{distance \: \: covered}{time \: \: taken} \\ \\ = \frac{400}{210} \\ \\ = \frac{40}{21}$

=1.90 m/sec

Average velocity=

$\frac{displacement}{time \: \: taken} \\ \\ = \frac{200}{210} \\ \\ = \frac{20}{21} \\ \\ = 0.95 \: m \: \: per \: \: sec$

= 0.95 m/sec