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
fenix001 [56]
3 years ago
10

A small smooth object slides from rest down a smooth inclined plane inclined at 30 degrees to the horizontal. What is (i) the ac

celeration
Physics
1 answer:
Ganezh [65]3 years ago
4 0
I believe it would be F*sin(30)/m
You might be interested in
A bowling ball with a circumference of 27 in. weighs 14.8 lb and has a radius of gyration of 3.43 in. If the ball is released wi
Marrrta [24]

Answer:

Distance covered is 37.63 ft

Solution:

As per the question:

Circumference of the bowling ball, C = 27 in

Weight of the bowling ball, w = 14.8 lb

Radius of gyration, k = 3.43 in

Velocity of release of the ball, v' = 23 ft/s = 276 in/s

Coefficient of friction, \mu = 0.19

Now,

We know that the circumference of the circle is given by:

C = 2\pi R

27 = 2\pi R

R = \frac{27}{2\pi } = 4.29\ in

Also, in case of rolling, we know that:

Angular velocity, \omega = \frac{v}{R}

v = \omega R

Now, applying the conservation of angular momentum along the floor:

Initial angular momentum = Final angular momentum

m\omega' = m\omega + I\omega

Moment of Inertia, I = \frac{2}{5}mR^{2} = mk^{2}

mv'R = mvR + mk^{2}\times \frac{v}{R}

v'R = vR + k^{2}\times \frac{v}{R}

276\times 4.29 = 4.29v + 3.43^{2}\times \frac{276}{4.29}

1184.04 - 756.903 = 4.29v

v = 99.56 in/s

Now,

Friction force, f = \mu mg

Also, acceleration of the ball can be computed as:

\mu mg = - ma

a = - \mu g = - 0.19\times 386.09 = - 73.357\ in/s^{2}

Now, the distance, d covered by the ball before rolling without slipping:

v^{2} = v'^{2} + 2ad

99.56^{2} = 276^{2} + 2\times (- 73.357)d

99.56^{2} - 276^{2} = 2\times (- 73.357)d

d = 451.65 in = 37.53 ft

7 0
3 years ago
When we do dimensional analysis, we do something analogous to stoichiometry, but with multiplying instead of adding. Consider th
Ksivusya [100]

Answer:

The  dimension is  D =  L ^{2} T^{-1}

Explanation:

From the question we are told that

     J  =  -D \frac{dn}{dx}

Here  [J] = \frac{1}{L^2 T}

       [n] =\frac{1}{L^3}

        [x] = L

So

    \frac{1}{L^2 T} =  -D \frac{d(\frac{1}{L^3})}{d[L]}

Given that the dimension represent the unites of  n and  x then the differential  will not effect on them

So

\frac{1}{L^2 T} =  -D \frac{(\frac{1}{L^3})}{[L]}

=>   D =  \frac{L^{-2} T^{-1} * L }{L^{-3}}

=>   D =  L ^{2} T^{-1}

   

5 0
3 years ago
What is the process by which rock fragments are moved from the source
timurjin [86]

Answer:

Sedimentary

Explanation:

The process by which rock fragments are moved from the source is Sedimentary.

8 0
4 years ago
Read 2 more answers
Change in temperature of body is 50°C the change in temperature on Kelvin scale is?<br> Ans is 5oK
nata0808 [166]
The changes in celsius are the same as those in kelvins. the difference between the two scales is that 0 celsius is about 273 kelvins and that 0 kelvins is about -273 celsius (note the minus sign)
3 0
4 years ago
What are some common measurements that are given as a rate?
BabaBlast [244]

Answer:

taco bell

Explanation:

6 0
4 years ago
Other questions:
  • The surface pressures at the bases of warm and cold columns of air are equal. air pressure in the warm column of air will ______
    11·1 answer
  • The law of reflection states that if the angle of incidence is 38 degrees, the angle of reflection is ___ degrees.
    13·1 answer
  • How many protons, electrons, and does chromium have?
    12·1 answer
  • A pump is partially submerged in oil and is supported by 4 springs. The oil has a specific gravity of 0.90, the weight of the pu
    5·1 answer
  • A horizontal spring with a constant, k = 291 N/m, is stretched 11 cm with a 2 kg block attached to it. What is the maximum speed
    8·1 answer
  • Where does the suns rays strike earth most direcly and least directly
    9·1 answer
  • As a train accelerates away from a station, it reaches a speed of 4.6 m/s in 5.2 s. If the train's acceleration remains constant
    13·1 answer
  • An object takes 29.5 years to orbit the Sun. What is its average distance from the Sun?
    10·1 answer
  • An aquarium open at the top has 30-cm-deep water in it. You shine a laser pointer into the top opening so it is incident on the
    13·2 answers
  • a force of 6.0kg gives an acceleration of 2.0m/s/s to the right. What is the force of friction on the block?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!