Question

would you please explain it to me step by step?

EXAMPLE 3-10 Level horizontal range. (a) Derive a to zontal range R of a projectile in terms of its initial speed lo horizontal range is defined as the horizontal distance the before returning to its original height (which is typically the y (final) = yo. See Fig. 3-27a. (b) Suppose one of Napoleon's car muzzle speed, vo, of 60.0 m/s. At what angle should it have been air resistance) to strike a target 320 m away? a) Derive a formula for the hori. itial speed 0and angle @o. The istance the projectile travels typically the ground); that is one of Napoleon's cannons had a should it have been aimed (ignore

Answer 1

► het vo= Oo= Uelocity of Projection angle of Projection Vosing to R -Vosino along y-axis Uy=+U sind = initial speed Vy - Vo sindo final speed. dy=-9 T=? Time of flight using equation of motion - Vosing = Vosing, gT Time of fight, IT2 voting along X - anis Range : horizontal speed x Time of flight - 24 Vo cos@o. a VSin 8 K? 9 Sino, cosøe vosin 200 (Answer) 99 given Vo = 60ml R= 320m Oo= ? : (6072 Sin20 = 20.-60.59 [ 0 = 30.290) (Answer) 6 320 : 9.8