35 km per hour is a speed.
If you also tell us what direction it's going, then it's a velocity.
Velocity tells the speed AND what direction it's in. -- "30 miles per hour" is a speed. -- "30 miles per hour north" is a velocity. -- "30 miles per hour east" and "30 miles per hour south" are the same speed but different velocities.
It is speed.
Velocity is speed plus direction. If you say you are traveling at 54 miles per hour, you are giving your speed. If you say you are going north at 54 miles per hour, you are giving your velocity.
Velocity is speed and its direction. "30 miles per hour" is a speed. "30 miles per hour north" is a velocity". "30 miles per hour north" and "30 miles per hour south" are identical speeds but different velocities.
'Velocity' should be compared with 'speed', and it should be understood that they're different. "30 miles per hour" is a speed. "30 miles per hour toward the south" is a velocity.
Velocity is a vector, which means it has a direction, but speed isn't. Speed is the absolute value of velocity. Velocity can be negative, meaning that the speed is opposite to the direction that you're calling the positive direction.
No, speed and velocity are not the same. Speed is a scalar quantity that measures how fast an object is moving regardless of its direction, while velocity is a vector quantity that includes both the speed of an object and its direction of motion.
Speed or velocity.
Speed or velocity.
a) A speed, b) a velocity.
The velocity of a car is the speed at which it is moving and also the direction in which it is travelling. It might be 55 miles per hour east, or 35 miles per hour southwest, or just about anything else like that.
At 35 km per hour, the wind is blowing at approximately 21.74 miles per hour.