Recent content by R.H.2010

Homework Statement A block of mass m=2.5 kg slides head on into a spring of spring constant 320 N/m. When the block stops, it has compressed the spring by 7.5 cm. The coefficient of kinetic friction between the block and the floor is .25. while the block is in contact with the spring and...

Homework Statement The top of a tower much like the leaning bell tower at Pisa, Italy, moves toward the south at an average rate of 1.4 mm/y. The tower is 59 m tall. In radians per second, what is the average angular speed of the tower's top about its base? Homework Equations...

It worked. Thank you very much.

Homework Statement Particle 1 of mass 230 g and speed 2.80 m/s undergoes a one-dimensional collision with stationary particle 2 of mass 400 g. Homework Equations What is the magnitude of the impulse on particle 1 if the collision is elastic? What is the magnitude of the impulse on...

a) I finally got this part after paying attention to units. b) (2800)X(550/36) - (2800)X(350/36) reading your hints: what do you mean to deal with velocities as vectors in momentum equations? c) I know I will have to use arctan, but it looks like I'm missing the vectors part that i...

Homework Statement A 2800 kg truck traveling north at 35 km/h turns east and accelerates to 55 km/h. What is the change in the truck's kinetic energy? What is the magnitude of the change in the linear momentum of the truck? What is the direction of the change in the linear momentum of the...