Question

In an archery practice an arrow was realised from the bow with the velocity 20m/s .It strikes to the bolt situated 15 meter ahead and stops. Find at what rate the arrow was accelerated

Answer 1

Acceleration means change in velocity by time
So here the time would be
Distance/speed
15/20 = 3/4
Now acceleration = 0-20/3/4
= -20*4/3 = -20*1.33 =
-13.3*2 = -26.6 M/sec^2