Estimate the instantaneous rate of change of vehicles at t = 18 by finding the average rates
from t = 18 to t = 18.1, t = 18 to t = 18.01, and t = 18 to t = 18.001.
time interval
average velocity
[18, 18.1]
[18, 18.01]
[18, 18.001]

intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

step-by-step explanation:

required vector is consists of the two componentsvx= 2+4=6 units   and vy= 1 unit and vx ⊥ vywe will use pythagorian theorem to find intensity of the vector vv∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 unitsthe angle ∡α between vector and east direction we wil find with tanαtanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

hope this