PROBLEM 2.10 A stone is thrown vertically upward at a speed of 50 m/s from the top of a tower 300 m. 10. Determine the velocity of the stone when it strikes the ground. c. 93.58 m/s d. 94.58 m/s 11. Determine the time of the stone when it strikes the ground. 91.58 m/s 92.58 m/s а. b. с. 12.43 s d. 13.43 s а. 11.43 s b. 14.43 s

applied mechanics 2

Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A 5-m steel beam is lowered by means of two cables unwinding at the same speed from overhead cranes. As the beam approaches the ground, the crane operators apply brakes to slow the unwinding motion. At the instant considered the deceleration of the cable attached at Bis 8.5 m/s2, while that of the cable attached at Dis 7.5 m/s². A -1.5 m B 2 m Determine the acceleration of points A and E. 12.25 m/s²₁. 3.75 m/s²₁. The acceleration of point A is The acceleration of point Eis D -1.5 m- E

A ball is thrown vertically upward from the edge of a 25m high building with an initial velocity u. The ball just misses the edge of the building and lands on the street below 4 seconds later. What was the initial speed of the ball? O 11.15 O 6.25 m/s O 25.84 m/s O 13.37 m/s