A crane exerts a net force of 900 N upward on a 750-kilogram car as the crane starts to lift the
1 answer:
The acceleration of the car is upward
Explanation:
We can solve the question by using Newton's Second Law of motion, which states that:
where
F is the net force exerted on an object
m is the mass of the object
a is its acceleration
In this problem, we know that:
F = 900 N is the net force exerted on the car
m = 750 kg is the mass of the car
Solving the equation for a, we find the acceleration of the car:
and it is in the same direction as the force (upward).
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Answer:
Explanation:
Note that acceleration is the rate change of velocity i.e
.
Since the velocity is giving as a variable dependent on the pressure, we have to differentiate implicitly both side with respect to time,i.e
if we substitute value for the pressure as giving in the question and also since the rate change of pressure is 0.354psi/sec, we have