Answer:

Explanation:
Given:
- average walking speed,

- average biking speed,

<u>According to given condition:</u>

where:
time taken to reach the building by walking
time taken to reach the building by biking
We know that,

so,



It should be Constant speed. The line goes straight & doesn’t change within the graph.
Answer:
60 km/h
Explanation:
Simplify the speed:
120÷2=60
Hence, the average speed is 60 km/h.
A) average acceleration = final velocity - initial velocity / time
= 7700 - 0 / 11
= 700ms^-2
B) force = mass x acceleration
= (3.05 x 105) x 700
= 320.25 x 700
= 224,175N