Speedis the rate of change in position of an object, regardless of direction of travel. Walk forward or backward at 2 meters per second, and your speed is just that: 2 m/s. Velocity is speed in the context of direction. Say you were walking backward again; your velocity is negative 2 m/s, although your speed is still positive.
relativespeed= 20- 15= 5,kmph. distance= 200 m. Thus, Lalloo will meet his friend when he gains 200 m over him. Speed required = (156/505) = 0.3 km/min = 0.3 x 60 km/hr = 18 km/hr. Online CAT 2021 Quant Course. Question 28: A train 90 m long is travelling at the rate of 40 kmph. A man is running at a speed of 5 kmph in a direction opposite
Amotor boat whose speed is 15 k m / h r in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. Determine the speed of the stream. Determine the speed of the stream. Open in App
Given Time taken to cover 5 km = 12 min late S1 = 5 km/hr = 25/18 m/s, t1 = t + (12 × 60) sec = t1 = (t + 720) sec Time taken to cover 8 km = 15. Get Started. Exams SuperCoaching Test Series Skill Academy. More. If the speed of the train is 15 m/s, then how much time (in seconds) will it take to cross a bridge 520 metres long? Suggested Speedof rowing in still water: 10 km/hr and the speed of the current: 5 km/hr. B. Speed of rowing in still water: 8 km/hr and the speed of the current: 7 km/hr. C. Speed of rowing in still water: 18 km/hr and the speed of the current: 12 km/hr. D. Aboat which has a speed of `5 km` per hour in still water crosses a river of width 1 km along the shortest possible path in fifteen minutes. The velo asked Jun 25, 2019 in Physics by Anshu Priya ( 24.6k points) Thenthe next stage in your speed adaptation is to run intervals at a target 1500m pace of 88 seconds per 400m (3.40 minutes/km or 5.52 minutes/mile). You should aim to run 6-10 repetitions of 400m with a 90 seconds recovery. If this is too difficult, reduce the interval to 200m and run it 10-12 times with the same recovery.

Thecovered distance by the river water in 15 minutes is 0.75km. Now, the velocity of the river is \[v=\dfrac{d}{t}=\dfrac{0.75}{\dfrac{1}{4}}=3\]km/h Additional information: Instantaneous speed is defined as the speed of a body at any instant of time. Suppose a body is moving, it starts its motion from time, t=0.

Findyour running pace per mile, kilometer, yard or meter. Calculate the distance you can run in a given amount of time, time required to run a specific distance, w7ELUh.
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    • 5 km in 15 minutes speed