Question

213 2.4 #3 Projectile Motion Problem (24 Points) A mortar round is fired at an angle of 60.0 deelative to the horizontal axis with an initial speed of 300 m/s at a height of 950 meters above a level surface? Neglect the effects of air resistance, etc. and take the gravitational acceleration to be 9.8 m/s vertically down- ward a. What are the horizontal and the vertical components of the mortar round's velocity immediately after being launched? 300 cos(60) 160 b. Write down expressions for the horizontal and vertical displacements of the round as a function of time t. herzint c. For how long is the projectile aloft before it strikes the level surface?

Answer 1

150 m/s 50 2. 2

Date 50 29945s