This is because the earth is way heavier than Jessica hence has a greater force of gravity applied on Jessica that Jessica applies to earth. The distance between the Earth and Jessica is also very short hence the force of gravity on Jessica towards earth is greater. According to Newton's laws that states; if an unbalanced force acts on an object, it will change the object's state of motion (the object will accelerate). The earth cause Jesica to ‘accelerate’ towards the ‘core’ when she stumbles.
Given,
pH of bleach = 12
pH of detergent= 8 to 10
pH of eye drops = 7
pH of lemon juice 1 to 3
pH of tea = 4 to 6
On rearranging samples from most acidic to most basic,
1. Lemon juics
2. Tea
3. eye drops
4. detergent
5. Bleach
final velocity = 0
acceleration = - 10 m/ s 2
distance. = 20 m
u = ?
v^2 - u ^2 = 2 a s
0^2 - u^ 2 = 2 * -10 * 20
-u^2 = -400
u = √ 400
u = 20m / s
Answer:
I think it's correct. Hope it helps.