How far does a horse travel if it gallops at an average speed of 25 km/h for 30 min?
Distance = average speed x time = 25 km/h x 0.5 h = 12.5 km.
What is the acceleration of a car that maintains a constant velocity of 100 km/h for 10 s?
The acceleration of a car that maintains a constant velocity of 100 km/h for 10s is zero.
What two units of measurement are necessary for describing speed?
Speed and velocity are both measured using the same units. The SI unit of distance and displacement is the meter. The SI unit of time is the second. The SI unit of speed and velocity is the ratio of two — the meter per second .
What is the relationship between distance and time traveled?
Here we will learn the mathematical relation between the speed, distance and time. The speed of a moving body is the distance travelled by it in unit time. If the distance is in km and time is in hours, then the speed is km/hr. If the distance is in m and the time is in seconds, then the speed is m/sec.
What is the gain in speed for a freely falling object?
An object in free fall falls under gravity alone with no friction. What is the gain in speed per second for a freely falling object? It gains approximately 10 m/s.
Is acceleration the same as velocity?
Velocity is the rate of change of position with respect to time, whereas acceleration is the rate of change of velocity. Both are vector quantities (and so also have a specified direction), but the units of velocity are meters per second while the units of acceleration are meters per second squared.
Can an object be moving when its acceleration is zero?
Can an object be moving when its acceleration is zero? If so, give an example. When there is no acceleration, if an object is at rest, it will remain at rest; if an object is in motion, its motion will be uniform linear motion. When the hill levels off, acceleration will be zero.
What is the average speed of a horse that gallops 15 km in 30 minutes?
5. What is the average speed in kilometers per hour for a horse that gallops a distance of 15 km in a time of 30 min? Average speed = 15 km/30 min = 15 km/0.5 h = 30 km/h.
What is the difference between average speed and instantaneous speed?
Average speed is the speed averaged over a span of time. Usually the total distance covered divided by the total time span. Instantaneous speed would be the speed any any given instant within that span of time, measured with a realtime speedometer.
What is the impact speed when a car moving at 100km h?
Answer and Explanation:The car in the front is moving at 98 km/h, while that behind is approaching at 100 km/h. These are known as absolute speeds. At impact, the speed of the car behind is seen by the one in front as: 100−98 km/h=2 km/h 100 − 98 k m / h = 2 k m / h .