A stone is released from a height of 180 m, reached the ground with the speed of 60m/s. How long did it take to reach the ground? *

The fishing boat was moving on a river. The paddle fell into the water as it crossed the bridge. After an hour, the fisherman notices the disappearance of the paddle and turns back, finding his paddle 6 km below the bridge. How fast is the river? (Suppose the speed of the (fisherman is the same in the opposite direction of the water

A particle starts from rest and accelerates as shown in the figure below. az (m/s²) 1 15 20 (s) 7 " 5 10 -1 -2 -3 (a) Determine the particle's speed at t = 10.0 s. m/s Determine the particle's speed at t = 20.0 s? m/s (b) Determine the distance traveled in the first 20.0 s. (Enter your answer to one decimal places.)

Arthur and Betty start walking towards each other when they are 100 m apart. Arthur walks with a speed of 3.2 m/s and Betty with a speed of 3.1 m/s. How long does it take to meet? Write the answer using 3 significant figures

A particle starts from rest and accelerates as shown in the figure below. az (m/s²) 1 t (s) 10 15 20 -1 -2 -3 (a) Determine the particle's speed at t = 10.0 s. m/s Determine the particle's speed att = 20.0 s? m/s (b) Determine the distance traveled in the first 20.0 s. (Enter your answer to one decimal places.) m

A bucket is thrown vertically down a well with a speed of 4.24 m/s, it takes 1.96 s for the bucket to reach the bottom of the well What is the height of the well?

help solve two part question  A. A roller coaster begins at rest at the top of a 30 m hill. Find the velocity at a point 5 m above the bottom of the hill. B. A roller coaster begins at 6 m/s at the top of a 39 m hill. Find the velocity at a point 4 m above the bottom of the hill.

A 20 N stone is thrown vertically upward from the ground. It is observed that, when it is 15 m above the ground, it travels with a velocity of 25 m / s upwards. What will its speed be when it is thrown? A) 30.31 m/sB) 15.16 m/sC) 18.19 m/sD) 319 m/s

You want to visit your friend in Seattle and decide to take the train. Unfortunately, you are late getting to the train station. You are running as fast as you can, but 30 meters ahead of you the train begins to pull out. You can run at a maximum speed of 8 m/s and the train is accelerating at 1 m/s². In 50 meters you will reach a barrier. Can you catch up to the departing train? Argue why you should or should not jump onto the moving train?

Answer parts a, and b of the following question. 7. a) Arthur and Betty start walking toward each other when they are 100 m apart. Arthur has a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. How long does it take for them to meet? b) The captain orders his starship to accelerate from rest at a rate of "1 g" (1 g = 9.8 m/s2). How many days does it take the starship to reach 10% the speed of light? (Light travels at 3.0 × 108 m/s.)