Conversions
Convert 120 cm into m.
1.20m
A runner starts at the 0 m mark and runs to the 50 m mark.
What is the distance traveled?
What is the displacement?
Distance = 50 m, Displacement = +50 m
A car travels 120 km in 2 hours.
What is its average speed?
60 km/h
A car speeds up from 0 m/s to 20 m/s in 5 s.
What is its acceleration?
4.0m/s2
What is the net force if a 10 N force pulls right and a 6 N force pulls left?
4N
A car travels 90 km/h. Convert this speed into m/s.
25m/s
A car drives from the 10 km mark to the 25 km mark.
What is the displacement?
+15km
A sprinter runs 100 m in 12.5 s. what is their speed?
8.0m/s
A ball slows down from 12 m/s to 4 m/s in 2 s.
What is its acceleration?
-4.0 m/s2
A box of mass 5 kg is pushed with a net force of 20 N.
What is its acceleration?
4.0m/s2
Convert 2789km/h to m/s
774.7m/s
A student walks 100 m east, then 40 m west.
What is the total distance traveled?
What is the displacement?
Distance = 140 m, Displacement = +60 m east
A cyclist rides 15 km north in 0.5 hours.
What is their velocity (magnitude and direction)?
30 km/h north
A car accelerates uniformly from rest to 30 m/s in 10 s.
what is the acceleration
3.0m/s2
A 2.0 kg block is pulled with 15 N forward while friction opposes with 5 N.
What is the acceleration of the block?
5.0 m/s2
Express 3.45×1053.45 \times 10^53.45×105 in standard form (regular number).
345,000
A car drives from 0 km → 30 km → back 10 km.
What is the distance traveled?
What is the displacement?
Distance = 40 km, Displacement = +20 km
A car moves 300 m east in 20 s, then 150 m east in 10 s.
What is the car’s average speed?
What is the car’s average velocity?
total distance= 15m/s
displacement= 15m/s east
A train moving at 20 m/s accelerates to 50 m/s in 15 s.
What is its acceleration?
2.0 m/s2
A 1000 kg car accelerates at 2.5 m/s².
What net force acts on the car?
2500N
(2.0×103)(4.0×102)
8.0×105
A train leaves a station at the 5 km mark, travels to the 42 km mark, and then continues to the 68 km mark, all in the same direction along the track.
What is the total distance traveled?
What is the displacement?
distance = 63km
displacement = 63km
A runner moves 400 m east in 60 s, then 200 m west in 40 s.
What is the total distance traveled?
What is the displacement?
What is the average speed?
What is the average velocity?
distance= 600m
displacement=200m east
speed=6.0 m/s
velocity=2.0 m/s east
A rocket is initially at rest and accelerates uniformly at 8 m/s² for 12 s.
What is its final velocity?
96 m/s
A 30 kg object falls freely in a vacuum (no air resistance).
What is the acceleration?
What is the net force acting on it?
a=g=9.8m/s2,F=ma=30×9.8=294N (downward)