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

Imagine your state is considering a bill that would allow businesses to build coal and other fossil fuel-based factories on state-owned lands. Greenpeace Intern
Which type of region do you feel is more common, homogeneous, nodal, or vernacular? Why?
Complete the sentence with the correct form of the verb estar. Mi tío __________ cansado.
Land clearing and irrigation in Australia have only resulted in an increase in the amount of land available for use as farmland. T/F
Your parents tell you that they must create a personal balance sheet. Explain what a personal balance sheet is and explain the three steps they must use in its
What did the UN want in the Korean War?
who first attempts to accept the Green knight's challenge?
Understanding the meaning of the word "bark" depends upon its ___:  trees or dogs?   A. excrescence   B. artisan   C. context   D. pretext
A cube and the net for the cube are shown. What is the surface area of this cube? A. 54 in² B. 81 in² C. 324 in² D. 486 in²
After sneaking in their abode, had he met his influential figure, he would cut his carpus, he thought to himself. Who was he?