Asteep slope on a displacement vs. time graph indicates a larger velocity

As we know that the velocity at any instant is defined as slope of displacement time graph at that instant

so we will have

now we will say

slope of the graph is also defined as

now on increasing the value of the slope we will have more steep graph

so more steep graph will have more value of theta

so for steep graph

so value of the velocity will be large at steep graph

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr