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## Homework Statement

In order for a vehicle (wheel) of radius r [m] and mass m [kg] to move at speed v [m/s], horizontal force F [N] should be applied at its axis. Find torque τ [N⋅m], equal to that force that must be applied on the hub.

## Homework Equations

torque τ = r × F

## The Attempt at a Solution

find tangential force F^{t} , then find torque τ;

find horizontal acceleration a, from it angular acceleration α, and from it and mass torque τ