Assessment: Motion

Which of the following is a scalar quantity?

A hiker walks 400 m north, then 300 m south. Find the magnitude of the displacement.

A train covers 240 m in 12 s. What is its speed?

A hiker's displacement is 60 m east in 15 s. Find the size of the velocity.

A motorcycle accelerates from 4 m/s to 22 m/s in 6 s. Find its acceleration.

A skater starts at 3 m/s and accelerates at 2 m/s² for 5 s. Find the final velocity.

A cyclist pulls away from a stop sign at 1 m/s and accelerates at 0.5 m/s² for 8 s. Find the distance travelled.

A stone is dropped from a bridge and falls for 2.5 s before hitting the water. Using g = 9.8 m/s², find how far it falls.

A car starts at 6 m/s and accelerates uniformly to 26 m/s over a distance of 160 m. Find its acceleration.

A velocity-time graph is a straight line from (0 s, 4 m/s) to (8 s, 20 m/s). Find the total displacement using the area under the graph.