Block 1 (15 kg) is located on the surface of a table. A rope pulls on block 1 with a tension of 174.9 N at an angle of 38.96 degrees above the horizontal. The coefficient of kinetic friction between the block and the surface equals 0.4 (Use g = 10 m/s2). What are the forces?

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.

In which of these cases are the two wave points considered to be in phase with each other?