(a)[2]
Calculate the car’s weight.
(b(i))[3]
Calculate the pressure exerted on the ground by each tyre.
(b(ii))[2]
Explain why the planks stop the car from sinking into the mud.
(c(i))[3]
Calculate the moment produced by this force, and include the unit.
(c(ii))[1]
Describe how the driver can increase the moment while still applying the same force of 200 N to the wrench.