Answer:
Net force = - 1500 N
Explanation:
We calculate the net force acting using Newton's second Law:

Concrete is also used as beam material, and is cheaper. However, concrete is comparatively not that strong to withstand the high tensile forces acting on the beams
From that ragged, motley list of statements, only 'C' is true.
What is a projectile give example?
The motion of such a particle is called Projectile Motion. In the above diagram, where a particle is projected at an angle θ, with an initial velocity u.
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Few Examples of Two – Dimensional Projectiles.
B). The substitution of a nitrogen base.. HOPE IT HELPS!!!!!!!!!!