Speed is how fast something moves. It's measured in units like miles per hour (mph), kilometers per hour (km/h), or meters per second (m/s).
Average speed is the total distance traveled divided by the total time taken. For example, if you drive 100 miles in 2 hours, your average speed is 50 mph.
Instantaneous speed is the speed at a specific moment. For example, your car's speedometer shows your instantaneous speed.
Velocity is speed with a direction. For example, driving north at 60 mph is a velocity.
Acceleration is how fast the speed changes. For example, a car speeding up is accelerating.
A person with his friend started from his house at 5 am and reached railway station which is 50 km away. First he travelled at 90km/hr for 20 min and then 120km/hr for 10 min.He dropped his friend at the station and started return journey to his house at 5.30 am and reached the house at 6.30 am. what is his speed for onward journey,return journey,average speed for the total journey, velocity of the onward journey,velocity of the return journey and velocity of the total journey?
A person crosses a 600m long street in 5min.what is his speed in km per hour?
A man on tour travels first 160km at 64 km/hr and the next 160km at 80km/hr.average speed for the first 320km/hr of the tour is:
How long will a boy take to run around a square field of side 35 metres,if he runs at a the rate of 9km/hr?
A train 150m long is running with a speed of 54km per hour.In what time will it pass a telegraph post?
If a person walks at 14km/hr instead of 10 km/hr,he would have walked 20km more ,what is the actual distance travelled by him?
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What is Deceleration?
formula of avg speed ?
derive formula of velocity