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Flura [38]
2 years ago
5

An object of mass 100kg is raised 2m above the ground using an Inclined Plane of length 10m calculate the effort parallel to inc

lined plane (g=9.8m/s2
Physics
1 answer:
MArishka [77]2 years ago
8 0

Answer:

Slope = 2 m / 10 m = 1/5

For every  5 m of effort the object will be raised 1 m

W = work done on object = M g h      increase in PE of object

E S = W      where E is effort and S the distance thru which the effort acts

E S = M g H

E = 100 kg * 9.8 m/s^2 * 2 m / 10 m = 196 kg m / s^2 = 196 N

Check: total work = 2 * 9.8 * 100 = 1960 J

Force Needed = 1960 J / 2 m = 980 Newtons

Mechanical advantage = 980 / 196 = 5   as one would expect since the object is raised 1 m for every 5 m of force input

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Explain why squeezing a plastic mustard bottle forces mustard out to top.
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Answer:

because when squeezing you are increasing pressure within the bottle and there is less pressure on the outside

5 0
3 years ago
Read 2 more answers
Two moles of an ideal monatomic gas are at a temperature of 345 K. Then, 2250 J of heat is added to the gas, and 870 J of work i
Lapatulllka [165]

Answer: The final temperature is 470K

Explanation: Using the relation;

Q= ΔU +W

Given, n = 2mol

Initial temperature T1= 345K

Heat =Q= 2250J

Workdone=W=-870J(work is done on gas)

T2 =Final temperature =?

ΔU =3/2nR(T2-T1)

ΔU=3/2 × 2 ×8.314 (T2 - 345)

ΔU=24.942(T2-345)

Therefore Q = 24.942(T2-345)+ (-870)

2250=24.942(T2-345)+ (-870)

125.09=(T2-345)

T2 =470K

Therfore the final temperature is 470K

5 0
2 years ago
A 2.00 kg block is placed against a spring on a frictionless 36° incline. the spring, whose spring constant is 19.8n/cm, is com
alekssr [168]
A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs. 
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5 0
3 years ago
a bowling ball rolled with a force of 15N accelerates at a rate of 5 m/sec^2 a second ball rolled with the same force accelerate
hammer [34]

Answer:

3

3.75

Explanation:

First ball

<em><u>Givens</u></em>

a = 5m/s^2

m = ??

F = 15N

<em><u>Formula</u></em>

F = m*a

<em><u>Solution</u></em>

15 = m * 5

15/5 = m

m = 3 kg

Second ball

<em><u>Givens</u></em>

a = 4m/s^2

m = ??

F = 15N

<em><u>Formula</u></em>

F = m*a

<em><u>Solution</u></em>

15 = m * 4

15/4 = m

m = 3.75 kg

4 0
3 years ago
How long would it take for a resultant upward force of 100 N to increase the speed of 50 Kg object from 100 m/s to 150 m/s ?
Wewaii [24]

Answer:

force = mass \times acceleration \\ 100 = 50 \times a \\ a = 2 \:  {ms}^{ - 2}  \\ from :  \:  \: v = u + at \\ 150 = 100 + (2 \times t) \\ 50 = 2t \\ time = 25 \: seconds

6 0
2 years ago
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