A car traveling at a constant speed goes around a sharp curve. Is the car accelerating? Explain.
2 answers:
Acceleration is defined as the rate of change of velocity of any object with time.
Since, speed is kept constant but direction is changed as it goes around the sharp curve and change in the direction results in acceleration as velocity is a vector quantity which depends upon magnitude as well as on direction.
Although, speed of the car is constant, for motion around the sharp curve, the direction is changing; hence the car will have acceleration.
Thus, the car has acceleration because it is changing direction as it goes around the curve.
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Answer:
Explanation:-
Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.
As zinc is more reactive than copper, it could easily displace copper from its aqueous solution and thus leads to formation of zinc (II) sulfate and pure copper.
The chemical reaction can be represented as :
The phases are represented as (s) for solid sate, (l) for liquid state, (g) for gaseous state and (aq) for aqueous state.