Quiz: Understanding and Describing Motion Which of the following are vector quantites?
O An acceleration of 9.8 m/s2.
O A displacement of 3 m.
A time of 92 s.
A distance of 48 m.
O A velocity of 45 m/s East.
O A speed of 110 km/h.

acceleration, displacement and velocity are vector quantities whereas time, distance and speed are scalar quantities.

Explanation:

✔ An acceleration of 9.8 m/s².

✔ A displacement of 3 m.

O A time of 92 s.

O A distance of 48 m.

✔ A velocity of 45 m/s East.

O A speed of 110 km/h.

see earlier

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it