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guajiro [1.7K]
3 years ago
11

Mary travelled 70 miles/hour due north.

Physics
2 answers:
slega [8]3 years ago
7 0

Answer : The correct option is, Velocity.

Explanation :

Acceleration : It is defined as the rate of change of velocity of an object wit respect to the time. Acceleration is a vector quantity that means it depends on the magnitude and direction of an object. The S.I unit of acceleration is, m/s^2

Distance : It is defined as the how far an object has traveled in time. Distance is a scalar quantity that means it is depends on the magnitude of an object only. The S.I unit of distance is, m

Speed : It is defined as the distance traveled by an object in unit time. Speed is also a scalar quantity. The S.I unit of speed is, m/s

Velocity : It is defined as the change in the position with respect to the time. Velocity is a vector quantity that means it depends on the magnitude and direction of an object. The S.I unit of velocity is, m/s

Mary traveled 70 miles/hour due north. This is an example of velocity. 70 miles/hour tell us about the magnitude of the object and north tell us about the direction of an object.

Hence, the correct option is, velocity.

kap26 [50]3 years ago
3 0
Since we know Mary's speed AND direction, we have
all the information we need to state her velocity.
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d=vi*t+(1/2)gt²

d=11 m
g=9.8 m/s²
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11 m=0 m/s*t+(1/2)9.8 m/s²t²
11 m=4.9 m/s²t²
t²=11 m / 4.9 m/s²
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3 years ago
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What is the temperature increase of 4.0 kg of water when heated by an 800-W immersion heater for 10 min? (cw = 4 186 J/kg⋅°C)
Llana [10]

Answer:

option C

Explanation:

given,

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2 years ago
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2 years ago
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