Physics Quiz

What is the function of time given by v(t) = 20t - 5t² in meters per second?

• 20 - 10t²

• 20 - 10t

• 15t - 5t²

• 20 - 5t

What is the form of acceleration for the given function v(t) = 20t - 5t²?

• 15t - 5t²

• 20 - 10t²

• 10 - 5t

• 20 - 10t

What is the instantaneous velocity at t = 3 seconds for v(t) = 20t - 5t²?

• 50 m/s

• 45 m/s

• 35 m/s

• 40 m/s

What is the instantaneous acceleration at t = 3 seconds for v(t) = 20t - 5t²?

• -10 m/s²

• -15 m/s²

• -25 m/s²

• -20 m/s²

What is the equation for displacement in uniformly accelerated motion?

• V₁ + V₁

• S = V₁vt

• V₁ = V₁ + at

• Vf - Vi