The answer is D. Unbalanced
This is because in order to change the speed or direction of an object, unbalanced forces need to be working on it.
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Answer:
Part a)

Part b)

Part c)

Explanation:
As we know that car start from rest and reach to final speed of 87 mph
so we have

now we have
Part a)
acceleration is rate of change in velocity



Part b)
distance moved by car with uniform acceleration is given as



Part c)
As we know that the car start from rest
so final speed after t = 10 s



Answer:
Maximum height, h = 1.74 meters
Explanation:
It is given that,
A potato is shot out of the cylinder. It is a case of projectile motion. The potato makes an angle of 17 degrees above the horizontal.
Initial speed with which the potato is shot out, u = 20 m/s
We have to find the maximum height of the potato. The maximum height of a projectile (h) is given by the following formula as :

Where
= angle between the projectile and the surface
g = acceleration due to gravity

h = 1.74 m
or h = 1.74 meters
Hence, this is the required solution.
The centripetal force, Fc, is calculated through the equation,
Fc = mv²/r
where m is the mass,v is the velocity, and r is the radius.
Substituting the known values,
Fc = (112 kg)(8.9 m/s)² / (15.5 m)
= 572.36 N
Therefore, the centripetal force of the bicyclist is approximately 572.36 N.