Question

After firing a bullet is found to move at an angle of 37 degree to horizontal its acceleration is 10 m per second square downwards

Answer 1

As the action of acceleration is downwards, then the value of acceleration (a) = - 10m/s2

Bullet is moving horizontally  = then the horizontal component of acceleration is used

Component of acceleration = acos37o

                                                   =- 10x 0.798

                                                    = -8m/s2