A is correct. When an object is moving along a straight path, magnitude of average velocity is equal to the average speed. Therefore, numerical ratio of average velocity to average speed is one in a straight line motion.
What is the ratio of velocity and average velocity?
Note:The ratio between average velocity and average speed is. Average velocity / Average speed = Total displacement / Total distance . Remember that the numerator part is smaller or equal to the denominator part. Hence, the ratio is always equal or less than one.
What is the ratio of speed?
When a machine has two gears of different sizes, the smaller gear turns faster than the larger gear. When the first gear (the driver or input gear) turns, the second gear (the driven or ouput gear) turns in response. The difference between the speeds of the two gears is called the speed ratio or gear ratio.
What is the ratio of speed to magnitude of velocity?
When an object is moving along a straight path, magnitude of velocity is equal to the speed. Therefore, numerical ratio of velocity to speed is one .
What is the formula for speed and velocity?
Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt . Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.
What is the ratio of speed and time?
The basic formula says Speed= Distance/Time . From this formula, it is evident that speed is directly proportional to distance and inversely proportional to time.
What is the numerical ratio of speed and velocity?
When an object is moving along a straight path, magnitude of average velocity is equal to the average speed. Therefore, numerical ratio of average velocity to average speed is one . A is correct. When an object is moving along a straight path, magnitude of average velocity is equal to the average speed.
What is the difference between speed velocity and acceleration?
Speed is the rate of change of distance(basically how much distance(m) has been covered in a particular time(s)). Velocity is the rate of change of displacement( change of distance in a particular direction with respect to time) , and acceleration is the rate of change of velocity per unit of time .
How do you find speed and velocity?
- Change minutes into seconds (so that the final result would be in meters per second). 3 minutes = 3 * 60 = 180 seconds ,
- Divide the distance by time: velocity = 500 / 180 = 2.77 m/s .
Can a body have acceleration without velocity?
Answer: Yes , an object can have zero velocity and still be accelerating simultaneously. Let us consider an object moving in the forward direction.
When velocity is zero What is acceleration?
At the highest point, the velocity of the ball becomes zero, after which it starts to fall down. At this point, the velocity of the ball is zero yet its acceleration is equal to g=9.8m/s2 .
What does the slope of a velocity time graph gives?
Explanation: The slope of a velocity graph represents the acceleration of the object . So, the value of the slope at a particular time represents the acceleration of the object at that instant.
How is final velocity represented?
In the equation V = d/t , V is the velocity, d is the distance and t is the time. ... For example, if your initial velocity was 3 m/s and your object acceleration is 4 m/s, your final velocity is 7 m/s (3 + 4 = 7).
What is the symbol for speed and velocity?
Speed gets the symbol v (italic) and velocity gets the symbol v (boldface). Average values get a bar over the symbol. Displacement is measured along the shortest path between two points and its magnitude is always less than or equal to the distance.
What is the formula to calculate velocity?
What is the Formula for Velocity? Answer: Velocity (v) is known to be a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation Velocity Formula (v) = Δs/Δt.
Is speed a velocity?
Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object’s movement . ... For example, 50 km/hr (31 mph) describes the speed at which a car is traveling along a road, while 50 km/hr west describes the velocity at which it is traveling.
