I):final velocity=initial velocity+acceleration due to gravity*time of travel
Therefore,
v=0+9.8*3.1
=30.38 m/s
If by floor you meant water bed then i think there isn't enough info in the question.
Answer:
c.
Explanation:
they are all almost correct.
c is the only fully correct option
1. True
2. True
3. True
4. True
5. False
6. False
7. True
Answer:
159.1 ton
Explanation:
The solution is shown in the attached file
Answer:19.32 m/s
Explanation:
Given
initial speed of car(u)=4.92 m/s
acceleration(a)=
Speed of car after 4.5 s
using equation of motion
v=u+at

v=19.32 m/s
Displacement of the car after 4.5 s



s=54.54 m