A kinesin that is transporting a secretory vesicle uses approximately 80 ATP molecules/s. Each ATP provides a kinesin molecule w
1 answer:
Answer:
The force is
Explanation:
From the question we are told that
The rate at which ATP molecules are used is
The energy provided by a single ATP is
The velocity of the kinesin is
The power provided by the ATP in one second is mathematically represented as
substituting values
Now this power is mathematically represented as
Where F is the force the kinesin is exerting
Thus
substituting values
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Answer:
0.001 s
Explanation:
The force applied on an object is equal to the rate of change of momentum of the object:
where
F is the force applied
is the change in momentum
is the time interval
The change in momentum can be written as
where
m is the mass
v is the final velocity
u is the initial velocity
So the original equation can be written as
In this problem:
m = 5 kg is the mass of the fist
u = 9 m/s is the initial velocity
v = 0 is the final velocity
F = -45,000 N is the force applied (negative because its direction is opposite to the motion)
Therefore, we can re-arrange the equation to solve for the time: