Amotorboat travels 92 km in 2 hours going upstream. it travels 132 km going downstream in the same amount of time. what is the rate of the boat in still water and what is the rate of the current?

The speed on boat in still water is    and the rate of the current is  

Explanation:

Since speed ,

Therefore speed of motor boat while traveling upstream is

and  speed of motor boat while traveling downstream is

Let speed of boat in still water be and rate of current be

Therefore   ----(A)

and       ------(B)

Adding equation (A) and (B)  we get

=>   ------(C)

Substituting the value of   in equation (A) we get

Thus the speed on boat in still water is    and the rate of the current is  

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be