to? a uniform negative acceleration (a) for a total period of 20 sec whereby the particle reverts back to its original position (from where it had started).
1) find uniform negative acceleration (a)
2) find time during which particle travelled backwards
3) find velocity with which its lands finally
motor boat starts a race at 4m/s, accelerates uniformly for 12sec, then travels with constant velocity for 8 seconds. it then slows uniformly to rest in another 8 seconds. If the boat has travelled a total distance of 276m, find the maximum velocity.
motor boat starts a race at 4m/s, accelerates uniformly for 12sec, then travels with constant velocity for 8 seconds. it then slows uniformly to rest in another 8 seconds. If the boat has travelled a total distance of 276m, find the maximum velocity.
...it cover? b) the force of the wind then decreases constantly during the next 30 s such that the boat's speed decreases to 1m/s at the end of the 30 s. Find the deceleration during this time.