A 1250kg car driving 1200km to Florida in 19.5 hours gets a speeding ticket for traveling 120km/h in Turbeville South Carolina.
1 answer:
Answer:
v = 61.54 km/h
Explanation:
The average speed of the car can be found by using the total distance covered by the car and the total time taken for that distance to be traveled. Therefore, the average speed of the car can be found by the following formula:
where,
v = average speed during the trip = ?
d = total distance driven by the car = 1200 km
t = time taken for the traveling = 19.5 hr
Therefore,
<u>v = 61.54 km/h</u>
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Answer:
The magnitude = 10.30 m
The direction of the vector proceeds at angle of 119.05°
Explanation:
Given that:
A vector has component
= -5 m and
= 9 m
The magnitude of vector can be represented as:
=
=
=
=
= 10.30 m
If we make an angle
with y- axis:
Then; tan =
tan =
tan = 0.555
= tan⁻¹ (0.555)
= 29.05°
Angle with positive x-axis = 90 +
= 90° + 29.05°
= 119.05°