Constants Part A A golf ball is thrown straight up from the edge of the roof of a building. A second golf ball is dropped from the roof a time of 1.06 s later. You may ignore air resistance If the height of the building is 20.3 m, what must the initial speed be of the first ball if both are to hit the ground at the same time? UF m/s Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B Consider the same situation, but now let the initial speed ц of the first ball be given and treat the height of the building as an unknown. What must the height of the building be for both balls to reach the ground at the same time for vo 8.95 m/s. 画画, 四?

A water balloon is dropped from the top of an 830 m high building. At the same instant it is dropped, an archer shoots an arrow vertically upward with the intention of breaking the balloon. At what speed must he launch the arrow for the balloon to break 3s after its release? *

An inquisitive physics student and mountain climber climbs a 51.0-m-high cliff that overhangs a calm pool of water. He throws two stones vertically downward, 1.00 s apart, and observes that they cause a single splash. The first stone has an initial speed of 2.06 m/s. (b) What initial velocity must the second stone have if the two stones are to hit the water simultaneously?

A very strong, but inept, shot putter puts the shot straight up vertically with an initial velocity of 11.4 m/s. How long does he have to get out of the way if the shot was released at a height of 2.15 m, and he is 1.80 m tall?

A ball is thrown directly downward with an initial speed of 7.15 m/s, from a height of 30.7 m. After what time interval does it strike the ground?

A engineer was accidentally thrown(downwards) overboard at an initial velocity of 6m.sand was in complete free fall. Assuming from the railing to the surface of the water is 30m. howmany seconds does it take before he hits the water?

An Olympic long jumper is capable of jumping 8.0 m. Assuming his horizontal speed is 9 m/s as he leaves the ground, how long was he in the air for and how high did he go?

A very strong but inept shot putter puts the shot straight up vertically with an initial speed of 10.2 m/s. How long does he have to get out of the way if the shot was released at a height of 2.4 m, and he is 1.5 m tall?

Give an example in which velocity is zero yet acceleration is not.

The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with an acceleration of 5.60 m/s2 for 4.20 s, making straight skid marks 62.4 m long, all the way to the tree. With what speed does the car then strike the tree?