Incline Plane Acceleration Quiz

A Tesla Cybertruck with a mass of 4535 kg is dropped from the top of a ramp inclined at 10 degrees. The coefficient of friction between the car and the ramp is 0.08. What is the expression for the frictional force?

•  $\mu$  mgsin( $\theta$  )

•  $\mu$  mcos( $\theta$  )

•  $\mu$  mgcos( $\theta$  )

•  $\mu$  msin( $\theta$  )

A Tesla Cybertruck with a mass of 4535 kg is dropped from the top of a ramp inclined at 10 degrees. The coefficient of friction between the car and the ramp is 0.08. What is the expression for the force of gravity pulling it down the ramp?

•  $mg\cos\left(\theta\right)$  

•  $mg\sin\left(\theta\right)$  

•  $mg\tan\left(\theta\right)$  

•  $mg\sin^{-1}\left(\theta\right)$  

A Tesla Cybertruck with a mass of 4535 kg is dropped from the top of a ramp inclined at 10 degrees. The coefficient of friction between the car and the ramp is 0.08. What is the expression for the normal force from the ramp?

• $mg\sin\left(\theta\right)$

• $mg\cos\theta$

• $mg\tan\left(\theta\right)$

Are the horizontal forces in equilibrium?

• yes

• no

Are the vertical forces in equilibrium?

• yes

• no

What's the correct formula to calculate the horizontal net force?

•  $mg\sin\theta\ -\ mg\cos\theta$  

•  $mg\cos\theta-mg\sin\theta$  

•  $mg\sin\theta-\mu mg\cos\theta$  

•  $-\mu mg\cos\theta+mg\cos\theta$  

A Tesla Cybertruck with a mass of 4535 kg is dropped from the top of a ramp inclined at 10 degrees. The coefficient of friction between the car and the ramp is 0.08. What is the total force of the truck down the ramp? (Use formula from question 6)

• 2034 N

• 3402 N

• 234 N

• 4302 N

What is the magnitude of the acceleration down the ramp?

• .59 m/s/s

• .45 m/s/s

• .95 m/s/s

• .85 m/s/s