Recent content by bensondros

Hi all, I am 21 this year, have a BSc in Actuarial Science, and am working in an insurance firm now. Recently, I spoke to a few friends, physicists (both experimental and theoretical) and found that I am really interested in physics, and more specifically, astrophysics. This is not...

Homework Statement Find the speed v of the rocket when the mass of the rocket = m. The rocket starts from rest at with mass M. Fuel is ejected at speed u relative to the rocket. Homework Equations m1v1 = m2v2 The Attempt at a Solution In the textbook, it starts off with a moving...

No need for apologies. Thanks for spotting the mistake! And most of all, thank you so much for taking the time to respond!

Thanks, I do have the solutions. He didn't sum the horizontal components of the acceleration for both the plane and the block. He summed the horizontal distance traveled by the plane and the block. I understand how he got his 4th equation, but I wonder why I couldn't do it my way, i.e why...

The reason I think the vertical acceleration of the block must not be zero is because it started from rest. After releasing it, it will slide down the plane, while pushing the plane to the left. This motion down the plane will definitely have a downward acceleration component. Looking at the...

Homework Statement A block of mass m is held motionless on a frictionless plane of mass M and angle of inclination θ. The plane rests on a frictionless horizontal surface. The block is released. What is the horizontal acceleration of the plane? (Introduction to Classical Mechanics by David...