OK, the wedge is accelerating (a) at Theta = 180 degrees (to the right) and the wedge is inclined theta = 75 degrees. For the m = 2 kg block to remain at rest all we need is a net force f = W cos(theta) - F sin(theta) = 0; where F = ma and W = mg the weight of the block. That is, the weight component along the incline is offset by the acceleration component along the surface; so the block does not slide.
Solving we have W cos(theta) = mg cos(theta) = ma sin(theta) = F sin(theta); such that a = g cos(theta)/sin(theta) = g cot(theta). Assuming g ~ 9.81 m/sec^2, you can now plug and chug to find the answer.
<span>The physics is this...when the net force on a body is f = 0, that body will not accelerate and start to move if it is already still. So when the block's weight component along the surface of the wedge is offset by the equal but opposite force along the surface of the accelerating wedge, the still block will not move.
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
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The answer to this question is a the estimate the speed of light
The main environmental effects of ozone depletion could include the following:
- higher risk of skin cancer
- sunburns
- quick ageing
- weakend immune system
<h3>What is ozone depletion?</h3>
Ozone depletion is the gradual thinning of the ozone layer in the upper atmosphere as a result of the relelase of chemical compounds or gases.
Ozone layer helps prevent the Earth surface against incoming ultraviolet radiations that could cause damage to our environment.
Therefore, the main environmental effects of ozone depletion could include the following:
- higher risk of skin cancer
- sunburns
- quick ageing
- weakend immune system
Learn more about ozone depletion at: brainly.com/question/1238233
Answer: unknown so the second one
I hope this helps you with your stuff
Answer:
<h2>2,000 kg boulder</h2>
Explanation:t
The Inertial is the resistance of a body at rest to be in motion
Given the following item
1. 4kg shot put ball
2. 2,000 kg boulder
The body of greater mass has greater inertia, hence would be harder to accelerate.
<em> An object with a small inertial mass will accelerate more than an object with a large inertial mass when acted upon by the same force.</em>
Of the 2 items in the list, the 2,000 kg boulder has the largest mass, hence it also has the greater inertial and more difficult to accelerate.