Amotorcyclist sees a branch in the road,
and hits the brakes, slowing down at
-6.42 m/s2. if it takes him 2.85 s to stop,
what was his starting velocity?
(unit = m/s)

18.3 m/s

Explanation:

Given:

a = -6.42 m/s²

t = 2.85 s

v = 0 m/s

Find: v₀

v = at + v₀

(0 m/s) = (-6.42 m/s²) (2.85 s) + v₀

v₀ = 18.3 m/s

what are the options.

explanation:

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.