Am designing a three wheeled cycle. The total gross weight of my vehicle including the frame + riders will be around 300Kg, which has to move at 20Kmph(5.55 m/s) speed . The basic driving force will be provided by pedaling.(adsbygoogle = window.adsbygoogle || []).push({});

Assuming the least acceleration to start from rest as 0.2m/s^2, how should i calculate the pedal force required?

I started with this approach -

Step 1: Acceleration = 0.2m/s^2

Step 2: Total force required = Rolling Frictional force + Accelerating Force

= 0.005*300*9.81 + 300*0.2 = 74.7 N

Step 3: Wheel Torque = Force X Wheel radius = 74.7*0.3 = 22Nm.

Step 4: Assuming no Gearing between wheel and pedal, Pedal Torque = Pedal force*Radius of pedal

So i get pedal force = 22 / (0.18) = 122 N

I my method/approach correct ?

Here I have used just the linear velocity and acceleration, since am dealing with pedals and wheels should I deal with the rotational velocity and acceleration?

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# Force required to move a vehicle

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