texasthor0279 texasthor0279
  • 10-10-2019
  • Physics
contestada

If a ball rolls off a 4m high table at 7m/s, how long will it take until it hits the floor

Respuesta :

MathPhys
MathPhys MathPhys
  • 10-10-2019

Answer:

0.9 s

Explanation:

Given (vertical direction):

y₀ = 4 m

y = 0 m

v₀ = 0 m/s

a = -9.8 m/s²

Find: t

y = y₀ + v₀ t + ½ at²

(0 m) = (4 m) + (0 m/s) t + ½ (-9.8 m/s²) t²

t ≈ 0.9 s

Answer Link

Otras preguntas

explain why reabsorption of certain materials in the kidneys is important to your health
a football is selling for 35% off the original price. the original price was $60. what is the sale price of the football.
Which were not states formed from territory gained in the Louisiana Purchase
Why doesn't Odysseus clasp Nausicaa's knees?.
Round 4.25 to one decimal place
When aqueous solutions of K2CO3 and Cu(NO3)2 are mixed, what precipitate(s) will form?
Need help on number 22 I really need help!!!!!!!!! If u can help on 23 that would be awesome!!!!!
Which statement accurately describes one of Theodore Roosevelt's accomplishments as president? A. He led the United States to victory in World War I. B. He gave
Can some one help me with at least one question.... Shifts in Tense 1.Which sentence contains an inappropriate shift in tense? A. As soon as the alarm clock r
An increase in biodiversity generally causes what ?