Answer:
7.9 
Explanation:
Take the fact that mass is inversely proportional to accelertation:
m ∝ a
Therefore m = a, but because we are finding the change in acceleration, we would set our problem up to look more like this:

Using algebra, we can rearrange our equation to find the final acceleration,
:

Before plugging everything in, since you are being asked to find acceleration, you will want to convert 0.85g to m/s^2. To do this, multiply by g, which is equal to 9.8 m/s^2:
0.85g * 9.8
= 8.33
Plug everything in:
7.9
= 
(1590kg the initial weight plus the weight of the added passenger)
<u>Answer</u>
672,000 Joules
<u>Explanation</u>
Gravitational potential energy (P.E) is the energy possessed by a body that is at a potential height from the ground.
IT is calculated by the formula;
P.E = mgh
Where m ⇒ mass
g ⇒ acceleration due to gravity
h ⇒ height from trhe ground.
P.E = 1200 × 1.6 × 350
= 672,000 Joules.
They will win by approximately .2m
Divide 400/58=6.9m while the other person is 400/60=6.6 thus he will win by about .2m
It is 6 g/cm3 because density cannot be negative, and it is not speed in which the unit would be m/s.
Momentum is a term used to quantify the motion of an object has. It is calculated as the the product of the object's mass and the velocity. It is expressed as:
Momentum = m x v
Momentum = 50 kg x 5 m/s
Momentum = 250 kg m/s
Therefore, the correct answer is the last option.