physical science 1601
A car moving at 15 m/s comes to a stop in 3 s. Its acceleration is
-5 m/s2.
The time needed for a car whose speed is 60 km/h to travel 800 m is
0.8 min.
A car starts from rest and reaches a speed of 15 m/s in 10s. Its acceleration is
1.5 m/s2.
An airplane reaches its takeoff speed of 60 m/s in 30 s starting from rest. The time it spends in going from 40 m/s to 60 m/s is
10 s.
In 6 min a person running at 10 km/h covers a distance of
1000 m.
A snail travels 45 cm in 20 min. Its average speed is
135 cm/h.
In the first 3 s after a car starts from rest with an acceleration of 4 m/s2 it will travel
18 m
After a stone dropped from a cliff has fallen 20 m, the stone's speed is approximately
20 m/s.
A ball thrown upward at 30 m/s will continue to rise for about
3.0 s.
When its brakes are applied, a car moving at 10 m/s undergoes an acceleration of -1.2 m/s2. In the next 5 s the car travels
35 m.
A car that starts from rest with a constant acceleration travels 50 m in the first 5 s. The car's acceleration is
4 m/s2.
A stone dropped from a cliff reaches the ground in 4 s. The stone's speed is then
40 m/s.
When its brakes are applied, a car moving at 10 m/s undergoes an acceleration of -1.2 m/s2. How far does the car travel before it comes to a stop?
42 m
A ball thrown upward at 30 m/s will reach the ground after about
6.0 s.
A car starts from rest with a constant acceleration of 5 m/s2. How much time does the car take to cover the first 160 m?
8 s