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
VikaD [51]
3 years ago
10

A ball initially at rest rolls down a hill with an acceleration of 3.3 m/s2. If it accelerates for 7.5 s, how far will it move?

Physics
1 answer:
goldfiish [28.3K]3 years ago
5 0

<u>Answer:</u>

  Ball will move 92.8125 meter along the cliff in 7.5 seconds.

<u>Explanation:</u>

We have equation of motion , s= ut+\frac{1}{2} at^2, s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

In this case initial velocity = 0 m/s, acceleration = 3.3 m/s^2, we need to calculate displacement when time = 7.5 seconds.

Substituting

  s=0*7.5+\frac{1}{2} *3.3*7.5^2\\ \\ =92.8125 meter

  So ball will move 92.8125 meter along the cliff in 7.5 seconds.

You might be interested in
A uniform electric field exists in the region between two oppositely charged plane parallel plates. a proton is released from re
dedylja [7]

According to Newton's second law

E.e = a * mp  ..... (1)

where

E is the magnitude of the electric field; e = 1.6 * 10^-19 is the elementary charge; mp = 1.67*10^-27 kg is the proton mass; a is the acceleration.

So, the distance

l = at^2/2 .......(2)

The proton accelerated

a = 2l / t^2 ...........(3)

From equations (1) and (3)

E= 32.51 V/m

Electric field

The physical field that surrounds electrically charged particles and exerts a force on all other charged particles in the field, either attracting or repelling them, is known as an electric field (also known as an E-field).  It can also refer to a system of charged particles' physical field. Electric charges and time-varying electric currents are the building blocks of electric fields. The electromagnetic field, one of the four fundamental interactions (also known as forces) of nature, manifests itself in both electric and magnetic fields.

To learn more about an electric field refer here:

brainly.com/question/15800304

#SPJ4

5 0
1 year ago
What is the mass of a stone moving at a speed of 15 m/s and having a monument at 7.1 kg meters per second
adell [148]

Answer:

<h3>The answer is 0.47 kg</h3>

Explanation:

The mass of the object given it's momentum and velocity can be found by using the formula

m =  \frac{p}{v}  \\

where

p is the momentum

v is the velocity

We have

m =  \frac{7.1}{15}  \\  = 0.4733333...

We have the final answer as

<h3>0.47 kg</h3>

Hope this helps you

4 0
2 years ago
A divot is created _____.
STatiana [176]
I think it is when shot scrapes off the top of the turf

4 0
3 years ago
Read 2 more answers
How many suns do you think are in our galaxy? Explain your answer PLS HELP ASP BEST GETS BRAINLIEST​
dexar [7]

Answer: There is only one Sun in the galaxy … that is the thing that rises in the morning and sets at night. However, there is a use of “sun” to signify any old star … nobody knows exactly there might be trillions out there

Explanation:

3 0
3 years ago
Radar use reflected microwaves to detect objects and measure their... what?
Sloan [31]
Height and depth..... for sure....

7 0
3 years ago
Other questions:
  • When matter changes from one state to another, what do we call this process? A. a physical change B. a nuclear change C. an expl
    14·2 answers
  • A solid disk and a thin-walled hoop each have a diameter of 8 cm. Both are released from rest at the same time at the top of a r
    7·1 answer
  • if a metal object was cut on half how much heat will be required to raise both half to a specific temperature
    8·1 answer
  • A 64 kg cross-country skier glides over snow. Thecoefficient
    11·1 answer
  • State Newton’s law of universal gravitation in words. Then do the same with one equation
    5·1 answer
  • 17. A 25 kg block is initially at rest on a rough, horizontal surface. A horizontal force of 75 N is required to set
    13·1 answer
  • There is a known potential difference between two charged plates of 12000 Volts. An object with a charge of 6.5 x 10-6 C charge
    8·1 answer
  • A 2.0 cm thick brass plate (k_r = 105 W/K-m) is sealed to a glass sheet (kg = 0.80 W/K m), and both have the same area. The expo
    11·1 answer
  • A 0.100 kg limestone cube is released from rest, and proceeds to slide down a frictionless ramp. At the bottom of the ramp, the
    10·1 answer
  • An object in free fall has a velocity of 5m/s in the upward direction. What is the instantaneous velocity of the object one seco
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!