There exists the same question that has the following choices.
<span>1 the car's friction is reduced to zero
2 the car's centripetal force drops to zero
3 the car continues in a straight path from the point at which it encountered the ice
4 the car continues in a circular path from the point at which it encountered the ice
</span>
The correct answer is choice 3 <span>the car continues in a straight path from the point at which it encountered the ice</span>
Acceleration is -7 m/s²
Explanation:
initial velocity (u) = 14 m/s
since it's gonna stop,
final velocity (v) = 0m/s
time taken(t) = 2 seconds
now,
a = (v-u)/t
or, a = (0-14)/2
or, a = -14/2
a = -7m/s²
Answer:
C. resonating
an object being forced to vibrate at its natural frequency creates resonance
Answer:
Explanation:
<u>Net Force
</u>
According to the second Newton's law, the net force exerted by an external agent on an object of mass m is:
Fn = m.a
Where a is the acceleration of the object. The net force is the sum of the individual vector forces applied to the object.
The m=1500 Kg car has two horizontal forces applied: the forward force of 5000 N that causes the movement and the air resistance force of 1250 N that opposes motion.
The net force is Fn = 5000 N - 1500 N = 3500 N
To find the acceleration, we solve the equation for a:
The car's acceleration is
Answer:
The most accurate and precise method to measure the thickness of a coin would be by a micrometer screw guage.