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Workout velocity and range of shell fired

1. Why is it possible to consider the vertical and horizontal motion of a projectile independently of each other.

2. A mortar shell fired with an angle of elevation of 50 degrees ahs a range of 2.5 km. Neglecting air resistance determine:

a. The time of flight.
b. The shells initial velocity.
c. The shells range and height 30 s after firing.
d. The other range at which the height was the same as calculated in part c above.

Solution Preview

1. Why is it possible to consider the vertical and horizontal motion of a projectile independently of each other?

Answer: The horizontal and vertical motion of a projectile are considered undependably of each other because there is no horizontal acceleration on the projectile while the vertical acceleration is equal to g (acceleration due to gravity). So the horizontal velocity of the particle remains constant while the vertical velocity changes due to acceleration g .

2. A mortar shell fired with an angle of elevation of 50degrees has a range of ...

Solution Summary

The velocity and range of shell fired is determined in the solution. The solution is 383 words as well as equations to help explain calculations.

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