A stone is thrown vertically into the air from a tower 110 ft. high at the same time that a second stone is thrown upward from the ground. The initial velocity of the first stone is 60 ft/s and that of the second stone 85 ft/s. When and where will the stones be at the same height from the ground?
A stone is thrown from the top of a 59.4 m high building. If the stone comes out with a vertical speed of 19.5 m / s. What is the time it takes for the stone to fall?
A stone is thrown upward with an initial velocity just to reach a point 78.4 m above the ground. Two seconds later, another stone is thrown upward with the same initial speed as the first stone. Determine: (a) the height above the ground where the two stones will meet, and (b) the time when the two stones will pass each other.
Three stones of equal mass are thrown vertically down from the top of a 200-m high building. The initial velocities for the three stones are 2.0 m/s, 5.0 m/s, and 6.0 m/s. What is the velocity (in m/s) of the center mass of the stones along the vertical direction after 3.0 seconds? A) -43.9 B) -16.9 C) -101.2 D) -67.5 E) -33.7
A stone is thrown vertically upward at a speed of 20.10 m/s at time t=0. A second stone is thrown upward with the same speed 1.510 seconds later. At what time are the two stones at the same height? At what height do the two stones pass each other? What is the downward speed of the first stone as they pass each other?
A stone thrown horizontally from the top of a 22-m tower hits the ground at a point 20 m from the base of the tower. (Ignore any effects due to air resistance.) (a) Find the speed at which the stone was thrown m/s (b) Find the speed of the stone just before it hits the ground m/s eBook
A stone is thrown vertically upwards. During its journey to the top, when is it that both its velocity and its acceleration are equal to zero? Halfway on the way up. Halfway on the way down. At the top of the flight. Never – there is no instance when both of these quantities equal zero at the same time.
A stone thrown horizontally from the top of a 24-m tower hits the ground at a point 18 m from the base of the tower. (Ignore any effects due to air resistance.) (a) Find the speed at which the stone was thrown. (b) Find the speed of the stone just before it hits the ground.
A stone is dropped into a river from a bridge 41.2 m above the water. Another stone is thrown vertically down 1.35 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone?
A stone is dropped into a river from a bridge 47.8 m above the water. Another stone is thrown vertically down 1.60 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone?