A student in Physics 211 decides to do an experiment. They travel to a city and climb to the roof of a building that is 3.0 x 102 m tall. Then, at the same instant, they drop one rock while a second rock is thrown downward with an initial speed of 16 m/s. Assume both rocks experience negligible air resistance while falling. How much EARLIER does the thrown rock strike the ground? A) 1.1 s B) 1.5 s C) 1.4 s D) they land exactly at the same time

A student in Physics 211 decides to do an experiment. They travel to a city and climb to the roof of a building that is 3.0 x 102 m tall. Then, at the same instant, they drop one rock while a second rock is thrown downward with an initial speed of 16 m/s. Assume both rocks experience negligible air resistance while falling. How much EARLIER does the thrown rock strike the ground? A) 1.1 s B) 1.5 s C) 1.4 s D) they land exactly at the same time

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter2: One Dimensional Motion

Section: Chapter Questions

Problem 64PQ

See similar textbooks

Similar questions

A distance with two significant figures divided by a time interval with three significant figures equals an average speed. How many significant figures does the average speed have?
The electrical impulse initiated by the nerves in Linas hand, signaling she has touched a hot stove, travels to her brain as fast as 200 m/s. At this speed, estimate the travel time of this impulse.
A student at the top of a building of height h throws one ball upward with a speed of vi and then throws a second ball downward with the same initial speed vi. Just before it reaches the ground, is the final speed of the ball thrown upward (a) larger, (b) smaller, or (c) the same in magnitude, compared with the final speed of the ball thrown downward?
The engineer of an intercity train observes a rock slide blocking the trains path 225.0 m ahead and activates the trains emergency brakes. The train decelerates uniformly at 1.8 m/s2 for 12.70 s before reaching the rock slide. What is the speed with which the train reaches the rock slide?
A bird rests on a branch in an aok tree, 12 m above the grassland, as it watches it's young birds. The bird suddenly needs to pass some solid waste .How fast is the solid waste traveling as it hits the grassland? A cat staring at the bird immediately notices something strange being released by the bird. How long does the cat have to react and get out of the way?
joggers a and b starting from the same point , jogging in opposite direction in a circular track field.their circular path has diameter of 600 meters. if the average speed of jogger A is 3 kph and that of jogger B is to 4 kph.Compute the time they will meet. a. 16.16 b. 21.54 c. 14.54 d. 42.23 what is the correct answer on the choices
A student in Physics 211 decides to do an experiment. They travel to a city and climb to the roof of a building that is 3.0 x 102 m tall. Then, at the same instant, they drop one rock while a second rock is thrown downward with an initial speed of 16 m/s. Assume both rocks experience negligible air resistance while falling. How much EARLIER does the thrown rock strike the ground? A) 1.1 s B) 1.5 s C) 1.4 s D) they land exactly at the same time
A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 31 m/s. A) Assuming that air resistance can be ignored, find the initial speed of the rock. Express your answer using two significant figures. B) Find the greatest height of the rock as measured from the base of the cliff. Express your answer using two significant figures.
Cliff height. You are climbing in the high Sierra where you suddenly find yourself at the edge of a fog-shrouded cliff. To find the height of this cliff, you drop a rock from the top and 10 s later hear the sound of it hitting the ground at the foot of the cliff. Ignoring air resistance, how high is the cliff if the speed of the sound is 330 m/s?
An old commuter train travels a distance of 100 km from Union Station to Berkeley’s Crossing in the suburbs. Part A) Traveling at a constant speed of 45 mph, how many hours does the trip take? mph stands for miles per hour. Part B)The old train was replaced with a new electric train that has a top speed of 70 mph; however, to save money, it was decided that the train will travel half the time at 70 mph and half the time at 55 mph. How many hours does this trip take?
A ball is released from rest from the twentieth floorfloor of a building. After 1 s1 s, the ball has fallen one floorfloor such that it is directly outside the nineteenth-floorfloor window. The floorsfloors are evenly spaced. Assume air resistance is negligible. What is the number of floorsfloors the ball would fall in 3s3s after it is released from the twentieth floorfloor?
Mario rides his motorcycle in going to school. He drives at an average speed of 30 kilometers per hour. The distance between his house and the school is 15 kilometers. Every time he sees his best friend Jessica walking on the road, he invites her for a ride and lowers his speed. On the other hand, he increases his speed when he wakes up late for school. a) If x represents the time it takes Mario to drive to school with the given distance of 15 kilometers, how will you represent the relationship of his speed (y) versus the time (x)?