If it is false I'm supposed to change the word velocity to a different word. So, help? Thanks. xDTrue or false: The information needed for describing velocity is distance/time and direction?
True. Velocity is a vector quantity, so it also needs a direction along with magnitude.True or false: The information needed for describing velocity is distance/time and direction?
Wakash said, ';You cant say that how much speed does a car have moving in circular road. Here we use the word velocity.';
Of course you can. Just look at the speedometer. Instantaneous speed is precisely what the speedometer is designed to measure. The interesting thing about a car travelling on a circular road is that its velocity can never be constant.* Even if the speed of the car is constant, the velocity is always changing because the direction is always changing.
In order for a car to travel with constant velocity, it must travel at a constant speed, and it must be moving in a straight line.
___________________
* Let's assume for the sake of argument that ';travel'; implies that the car is not standing motionless. The velocity of a car on a circular road can be a constant, zero, but then the car is not ';travelling'; in that case.
Okay,it is true.Velocity is distance moved per unit time and it is a vector quantity so it is dependent on direction.Hope i helped!
Speed is scalar i.e it has magnitude.
while Velocity is vector i.e it has magnitude as well as direction.
So, True!!!
You cant say that how much speed does a car have moving in circular road. Here we use the word velocity.
No comments:
Post a Comment