When an object thrown straight upwards gets to the top of its path, Its velocity is zero because it moves opposite to gravity and acceleration is 10 m/s² , due to the rate of change of velocity of an object with respect to time.
A boat covers 35 km downstream in 2 h and covers the same distance upstream in 7 h. Find the speed (in km/h) of the boat in still water.
Speed of current is 25% of speed of boat in still water, if boat travelled 45 km downstream and returned back in total 12 hr. then find speed of boat i...
The speed of the stream is 15 km/h. Boat ‘A’ covers 140 km distance against the stream in 4 hours and boat ‘B’ covers 105 km distance against th...
A boat takes 7 hours to cover 266 km upstream and 9 hours to cover 468 km downstream. Find the time taken by the boat to cover 528 km upstream and 540 k...
Speed of a boat in still water is 12 kmph and speed of stream is 6 kmph. A man rows to a place at a distance of 72 km and come back to starting point. T...
A boat covers a distance of 108 km downstream in 3 hours. If the ratio of upstream speed to downstream speed of the boat is 5:9, then find the distance ...
A boat can go 15 km upstream and 21 km downstream in 2 hours. If the speed of the stream is 6km/h, then the time taken (in hours) by the boat to go 21 k...
The speed of a boat going upstream is 20% slower than when it is traveling downstream. The boat travels 90 km in still water over a period of 4 hours. C...
Nobita can row from a point A against a current for 30 minutes and then come back in favour of the current for the next 30 minutes and comes to the poin...
A man rows a boat a certain distance downstream in 9 hours, while it takes 18 hours to row the same distance upstream. How many hours will it take him t...
