1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataly_w [17]
3 years ago
10

A jet plane lands with a speed of 87 m/s and can accelerate at a maximum rate of −4.10 m/s2 as it comes to rest. (a) From the in

stant the plane touches the runway, what is the minimum time needed before it can come to rest?
Physics
1 answer:
garri49 [273]3 years ago
7 0

Answer:

21.22s

Explanation:

initial velocity u=87m/s

acceleration a=-4.10 m/s²

velocity v=0

time t=?

From Newton's first law of motion

V=u+at

0=87-4.10t

-87=-4.1t

t= -87/-4.1

t= 21.22 s

You might be interested in
A model rocket is launched with an initial upward velocity of.
REY [17]

Answer:
A model rocket is launched with an initial upward velocity of 215 ft/s.

Explanation:

3 0
2 years ago
how can you tell, as you walk close to a parked car, if it had been running recently? describe your reasoning in terms of energy
Blababa [14]
This question is probably referring to heat energy transferring from the car to its surroundings.
4 0
4 years ago
Dependent variable and the independent variable is ?
koban [17]

The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific

7 0
3 years ago
In a hydraulic garage lift, the small piston has a radius of 5.0 cm and the large piston has a radius of 1.50 m. What force must
Nikitich [7]

Answer:

222.22 N

Explanation:

r = 5 cm = 0.05 m, R = 1.5 m, f = ? , F = 200,000 N

Use pascal's law

F / A = f / a

F / 3.14 x R^2 = f / 3.14 x r^2

F / R^2 = f / r^2

f = F x r^2 / R^2

f = 200000 x 0.05 x 0.05 / (1.5 x 1.5)

f = 222.22 N

7 0
3 years ago
What will be the outcome of putting litmus paper into rainwater?
balu736 [363]
Maybe answer D????????
5 0
3 years ago
Other questions:
  • A 150kg person stands on a compression spring with spring constant 10000n/m and nominal length of 0.50.what is the total length
    11·1 answer
  • The vertical displacement of the wave is measured from the ?
    15·1 answer
  • 1. How is it possible to use pools to model apparent weightlessness, similar to what astronauts
    8·1 answer
  • Which describes the eye of a hurricane?
    8·2 answers
  • The diagram shows a spectrometer being used to analyze a sample of a solution.
    11·2 answers
  • What is the boiling point of an aqueous solution that has a vapor pressure of 21.0 torr at 25 ∘C? (P∘H2O=23.78 torr; Kb= 0.512 ∘
    6·1 answer
  • An astronaut is moving in space when a big explosion occurs about 50 meters behind him. How will the astronaut come to know abou
    9·1 answer
  • A physicist wants to estimate the rate of emissions of alpha particles from a certain source. He counts 400 emissions in 80 seco
    12·1 answer
  • On March 27, 2004, the United States successfully tested the hypersonic X-43A scramjet, which flew at Mach 7.0 (seven times the
    6·1 answer
  • Ross training for a half marathon which is 13.1 miles long. Within four months he has progressed to an 11 mile practice run if R
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!