A race car accelerates uniformly from 7.5 m/s to 45 m/s over a distance of 90m. Determine the acceleration of the car.

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.

Current vs. forcewhat type of relationship does this graph show?

How do i solve this physics problem?