A bullet comes out of the barrel of gun of length 2 meter with a speed of 20 m/s. The average acceleration of the bullet is ...... m//s^(2).

A bullet comes out of the barrel of gun of length 2 meter with a speed

1.	A bullet comes out of the barrel of gun of length 2 meter with a speed of 20 m/s. The average acceleration of the bullet is ...... m//s^(2).
Answer» 10 100 1000 1 Solution :`{:(v ^(2) - v _(0) ^(2)= 2ad), ( therefore 2ad =v _(0)^(2))\|{:(v =0 ms ^(-1) ("SUPPOSE") v _(0) = 20 ms ^(-1)), ( d=2 m"," a = ?):}` `therefore a = (v _(0) ^(2))/(2d)` `= (400\)/(4) ` `therefore a = 100 ms ^(-2)`