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3 years ago

Show the weight of the ladder and draw the missing Frictional force.

Physics

1 answer:

madreJ [45]3 years ago

5 0

Since there is no friction between the ladder and the wall, there can be no vertical force component. That's the tricky part ;)

So to find the weight, divide the 100N <em>normal</em> force by earths gravitational acceleration, 9.8m/s^2

$W = \frac{N}{g} = \frac{100N}{9.8m/s^{2}} = \frac{100}{9.8} = 10.2kg$

Then;
Draw an arrow at the base of the ladder pointing towards the wall with a value of 30N, to show the frictional force.

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Which term refers to the upper part of a glacier that receives the most snowfall?

liq [111]

The answer is A) accumulation zone

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3 years ago

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3 years ago

Read 2 more answers

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puteri [66]

Answer:

C. A rubber rod and a glass rod charged this way have opposite charges on them.

Explanation:

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Meanwhile, when you rub a glass rod against silk, it loses electrons to the silk material and becomes positively charged.

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3 years ago

An object moves along the x axis. The graph shows it’s position x as a function of time t. Find the average velocity of the obje

nadezda [96]

Question is from B to C

Answer: (b) 1.5m/s

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t1=1s, t2=5s
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So average velocity v =∆x/∆t=6/4=1.5m/s

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3 years ago

1. How would you expect an instantaneous acceleration vs. time graph to look for a cart moving with a constant

r-ruslan [8.4K]

Answer:

a=0 v = v₀ + a t

a=0 line is horizontal

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2, speed and relationship of a car is given by

v = v₀ + a t

where vo is the initial velocity, a is the acceleration and tel time

in this case I will calcograph velocity vs. time the constant acceleration is a straight line.

In general from the graph we can find the initial velocity with the cut at that x and the acceleration of the car with the slope

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