Recent content by devilish_wit

Homework Statement (Please check the attached image) 2. Homework Equations The Attempt at a Solution Those are my answers. I thought the magnitude of the applied force would be bigger because that would be responsible of keeping the block on that spot without having it pulled back by the...

Yes it's correct! :)

Homework Statement While learning to drive, you are in a 1 320-kg car moving at 34.0 m/s across a large, vacant, level parking lot. Suddenly you realize you are heading straight toward a brick sidewall of a large supermarket and are in danger of running into it. The pavement can exert a...

I guess the acceleration from Vy vs t should equal to 9.8 m/s^2, while the one you find from Vx vs t is 0m/s^2. So when you take those values and solve “a = square root of x^2 + y^2” it would equal to the gravitational acceleration 9.8 m/s^2. I mean I’m not the best in physics that’s why I’m...

Should the acceleration found through Vy vs. t graph be always equal to -9.8 m/s^2? Does the angle of launch affect gravity?

Homework Statement We had a lab on projectile motion and one of the questions was this: Use your Vy versus t graph to determine the y-component of the acceleration of the puck. Should this be equal to the acceleration due to gravity (9.8 m/s)? Explain why it is or why it is not. The...

This came from some sort of ticker tape lab, only it’s applied for projectile motion. The papers with the ticker dots were already prepared so we didn’t actually did that experiment. We measured the x and y distance for each dots, then solved for the instantaneous velocity for each time. The...

Homework Statement These are the experimental results we got from the ticker tape lab we did in projectile motion. How exactly do I find Vy? My graph looks weird. I'm assuming Vy initial must be exactly the first velocity on the table. Homework EquationsThe Attempt at a Solution

Is my free body diagram correct?

That's my free body diagram For m1: Fnet = F - P - μ1(N) ---> F - (μ1m1)g - P For m2: (I'm not sure if F is still included in this equation or not?) Fnet = F + P - μ2(N) ---> F - (μ2m2)g + P (this answer was wrong)

Homework Statement Two blocks of masses m1 and m2 are placed on a table in contact with each other as shown in the figure below. The coefficient of kinetic friction between the block of mass m1 and the table is μ1, and that between the block of mass m2 and the table is μ2. A horizontal force of...

oh never mind guys, I realized I made a stupid mistake. My acceleration was in cm/s and not in m/s!

Homework Statement The figure below shows the speed of a person's body as he does a chin-up. Assume the motion is vertical and the mass of the person's body is 72.7 kg. Determine the force exerted by the chin-up bar on his body at the following times. My answers: Homework Equations F = ma...

nice to meet you too

Homework Statement A flat cushion of mass m is released from rest at the corner of the roof of a building, at height h. A wind blowing along the side of the building exerts a constant horizontal force of magnitude F on the cushion as it drops as shown in the figure below. The air exerts no...