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gtnhenbr [62]
2 years ago
7

What is the acceleration of a 24 kg mass pushed by a 6N force?

Physics
1 answer:
olga nikolaevna [1]2 years ago
7 0
0.25 m/s squared

hope this helps x
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You have two identical boxes. You place skittles in one and the snicker bars in the other. Which box can hold more pieces of can
vichka [17]
The skittles because they are small so you can fit more in
3 0
3 years ago
A factory worker pushes a crate of mass 31.0 kg a distance of 4.35 m along a level floor at constant velocity by pushing horizon
Debora [2.8K]

Answer:

a. 79.1 N

b. 344 J

c. 344 J

d. 0 J

e. 0 J

Explanation:

a. Since the crate has a constant velocity, its net force must be 0 according to Newton's 1st law. The push force F_p by the worker must be equal to the friction force F_f on the crate, which is the product of friction coefficient μ and normal force N:

Let g = 9.81 m/s2

F_p = F_f = \mu N = \mu mg = 0.26 * 31 * 9.81 = 79.1 N

b. The work is done on the crate by this force is the product of its force F_p and the distance traveled s = 4.35

W_p = F_ps = 79.1*4.35 = 344 J

c. The work is done on the crate by friction force is also the product of friction force and the distance traveled s = 4.35

W_f = F_fs = -79.1*4.35 = -344 J

This work is negative because the friction vector is in the opposite direction with the distance vector

d. As both the normal force and gravity are perpendicular to the distance vector, the work done by those forces is 0. In other words, these forces do not make any work.

e. The total work done on the crate would be sum of the work done by the pushing force and the work done by friction

W_p + W_f = 344 - 344 = 0 J

8 0
3 years ago
Read 2 more answers
Which statement about subatomic particles is true?
navik [9.2K]

A. An electron has far less mass than either a proton or neutron.

4 0
3 years ago
A skateboarder is moving 5.25 m/s when he starts to roll up a frictionless hill. How much higher is he when his velocity has red
Taya2010 [7]
Mechanical energy E = mgh + 1/2mv²

When he starts, let h = 0 ⇒ E₁ = 1/2mv₁²
When he reaches height h ⇒ E₂ = mgh + 1/2mv₂²

Without friction, energy is conserved at all times.

E₁ = E₂
     ↓
1/2mv₁² = mgh + 1/2mv₂²
     ↓
1/2v₁² = gh + 1/2v₂²
     ↓
gh = 1/2(v₁² - v₂²)
    ↓
h = (v₁² - v₂²) / (2g)


5 0
3 years ago
Read 2 more answers
How long does it took for 1000-watt microwave oven to do 20000 joules of work
svp [43]

Answer:

20 seconds

Explanation:

The equation for Power is:

Power = \frac{Work}{time}

Which means...

Time=\frac{Work}{Power}

We can plug in the given values into the equation:

Time = \frac{20000\ J}{1000\ W}

Time=20 \ s

3 0
2 years ago
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