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

Y=-3/2x+2 Write the equation of the line in slope
Why did colonist way to declare independence from Britain
Debi's parents want to share 300 tokens equally among the 9 friends.After Debi's parents give each person the same number of tokens, how many tokens are left ov
he system of linear equations -2x + y = 8 and -3x - y = 7 is graphed below.
"The secretary of state publishes the ________, which is the source of official notices or rules, meetings, executive orders, and opinions of the attorney gener
What was the first all female anime? What has it led too?
When the President provides leadership on an important moral issue, he is acting as the nation’s _____. chief diplomat chief administrator chief of party
An automobile traveling on a straight, level road has an initial speed v when the brakes are applied. In coming to rest with a constant acceleration, it travels
Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than 144 in. Find the dimensions of a rectangular
Alex has 3 times as many pets as Roman. If they have 24 altogether ,how many do they have ?