um, the only variables and values they gave me are, the mass of the driver '55kg', the initial velocity '173 km/h' final velocity '0km/h' and the stopping distance '66cm'CompuChip said:In the formula you gave,
[tex]v^2 = u^2 + 2ad[/tex]
what do all the letters mean?
I.e. what does v stand for, and u, and a and d?
Can you also list for which ones values are given in the problem and which ones are still unknown?
The formula V^2=u^2+2*a*d is used to find the acceleration of an object. V represents the final velocity, u represents the initial velocity, and d represents the displacement of the object. Simply plug in the known values for V, u, and d and solve for a to find the acceleration.
Yes, this formula can be used to find acceleration in any situation where you know the initial and final velocities, as well as the displacement of the object.
The values for V, u, and d should all be in the same units. Common units for velocity include meters per second (m/s) and miles per hour (mph). Displacement is typically measured in meters (m) or feet (ft).
Yes, this formula can be rearranged to solve for any of the variables (V, u, d, or a) depending on what information you have. For example, if you know the initial and final velocities, you can rearrange the formula to solve for displacement (d).
The variable V represents the final velocity of the object, u represents the initial velocity, d represents the displacement, and a represents the acceleration. It is important to make sure all values are in the correct units when using this formula to ensure an accurate result.