Astraight wire segment of length 0.92 m carries a current of 20.4 a and is immersed in a uniform external magnetic field of magnitude 0.19 t.
(a) what is the magnitude of the maximum possible magnetic force on the wire segment?

The magnitude of the maximum possible force is 3.57 newtons.

Explanation:

The magnetic force on a wire is:

with I the current, L the length of the wire and B the magnitude magnetic field. So, the magnitude of the force is:

(1)

with the angle between the wire and the magnetic field, the maximum possible value is when the wire and magnetic field are perpendicular to each other then so by (1):

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2