Question

1. A car is initially at x0=230m has a constant velocity of -32m/s. (a) Calculate its coordinate at t=5.5s. (b) Calculate the time at which the car reaches coordinate -450m.

Answer 1

a) 114.5 m

b) 32.4 s

Step-by-step explanation:

x = x₀ + v₀ t + ½ a t²

Given:

x₀ = 230 m

v₀ = -32 m/s

a = 0 m/s²

Substituting:

x = 230 − 21 t

a) Given t = 5.5 s:

x = 114.5 m

b) Given x = -450 m:

t = 32.4 s