A projective is thrown from the top of a building with an initial velocity of 30

Question

A projective is thrown from the top of a building with an initial velocity of 30 m/s in the horizontal direction. If the top of the building is 30 m above the ground, how fast will the projectile be moving just before it strikes the ground? 35 m/s 39 m/s 31 m/s 43 m/s 54 m/s A constant force is applied to a body that is already moving. The force is directed at an angle of 60 degree with respect to the direction of the body's velocity. What is most likely to happen is that: the body will stop moving. the body will move in the direction of the force. the body's velocity will increase in magnitude but not change direction. the body will gradually change direction more and more toward that of the force while speeding up. the body will first stop moving and then move in the direction of the force.

Explanation / Answer

7) Vy = gt = g*sqrt(2h/g) = 9.8*((2*30)/9.9)^.5 = 24.12

Vx = 30

V = sqrt(Vx^2+Vy2) = 39 m/s

8) d

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.