A rock is dropped off the side of a bridge and hits the water below 7.1 s later. (a) What was the rock's velocity when it hit the water? speed_________m/s direction: upward or downward? (b) What was the rock's average velocity as it fell? speed_________m/s direction: upward or downward? (c) What is the height of the bridge above the water? ____________m

Q: An airplane flying directly eastward at a constant speed travels 278 km in 2.0 h. (a) What is the…

A:

Q: A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below. For…

A:

Q: An object is launched at a velocity of 26 m/s in a direction making an angle of 34 degrees upward…

A: Given value--- Initial speed = 26 m/s. angle = 34 degree . We have to find--- flight time?

Q: A ball is thrown downward from the top of a building with an initial speed of 5 m/s. Its trikes the…

A: we know that,S=ut+12gt2

Q: An archer fires an arrow straight up into the air with a speed vo = 7 m/s. Neglect air resistance.…

A: initial velocity v0=7 m/s

Q: A car traveling at 20 m/s runs out of gas while traveling up a 9.0 slope. Part A How far will it…

A: Please see the answer below

Q: An object slides off a frictionless, horizontal table from a height of 1.40 m above the floor. It…

A: In the question it is given that height of the table,h=1.40 mdistance of the the object strict point…

Q: A stone is dropped from a height of 6.4m above a pool of water that is 6.0m deep. After striking the…

A:

Q: An airplane flying directly eastward at a constant speed travels 298 km in 2.0 h. (a) What is the…

A: Given values-  Displacement (d) = 298 km  Time (t) = 2.0 h  Formula for average velocity -  va=dt

Q: Your grandfather had to walk to school uphill, both ways, but one way he went at 5.0 km/hr, and the…

A: Given: Speed of the walking to school from home  v1 = 5.0 km/hr  Speed of the walking to home from…

Q: On the Moon, where the acceleration of gravity is very close to one sixth that of the earth, an…

A: Here  time is given ,t= 7.8 s  Acceleration ,a= g/6

Q: The acceleration of a crate sliding down a ramp is given by ax = (0.25t2) m/s? and ay = (1.5t) m/s?,…

A: Given data :  Crate acceleration : ax = (0.25t2) m/s2  and  ay = (1.5t3) m/s2  At t= 0, vx = 3 m/s…

Q: When a baseball is thrown straight upward, what is its acceleration at its greatest height? Question…

A: Given data:  Baseball is thrown straight upward Required: Acceleration at greatest height

Q: An  rock is thrown straight up with an initial velocity of 18.5 m/s. What maximum height will the…

A:

Q: The first question is: Kalea throws a baseball directly upward at time t=0 at an initial speed of…

A: Write the given values with the suitable variables. u=13.7 m/sv=0 m/sa=-9.8 m/s2 Here, u, v, and a…

Q: A golf ball rolls off a horizontal cliff with an initial speed of 14.8 m/s. The ball falls a…

A:

Q: A certain freely falling object, released from rest, requires 1.20 s to travel the last 33.5 m…

A: (a) Use the kinematic equation to solve for the velocity of the object when it is 33.5 m above the…

Q: An Object is pushed on a flat surface with an initial velocity of 1.2 m/s and speeds up at a rate of…

A:

Q: An object rolls off a 17.0-m high cliff with a speed of 4.50 m/s. a. The time for the coconut to…

A: Given data: Height  =17.0m Speed =4.50 m/s The projectile motion of the ball is,

Q: Suppose I throw a rock horizontally with an initial speed of 30 m/s. Suppose my release point is 2 m…

A:

Q: To help travelers get around the airport, a shuttle was built between two terminals. Starting from…

A: Given data: The acceleration of the shuttle for t1 time, a1=0.447 m/s2. The time interval during…

Q: A football player runs 40 meters to the right in 8 seconds. From this we know _     The…

A: Given value--- total distance = 40 m total time = 8 second . We have to find--- which option is…

Q: You throw a baseball directly upward at time ?=0 at an initial speed of 12.7 m/s. What is the…

A: Given Data: Initial velocity u = 12.7 m/s Acceleration due to gravity is g = 9.8 m/s2

Q: A ball is thrown downward from the top of a building with an initial speed of 25 m/s. Its trikes the…

A: The second equation of motion is  s= u t + 12at2 where, u is the initial velocity, a is the…

Q: A ball is being thrown vertically upward and being caught at the same elevation (original position)…

A: Given data:  Initial velocity in vertically upward direction Total time taken = 9.4 seconds

Q: A ball is thrown downward from the top of a building with an initial speed of 25 m/s. Its trikes the…

A: The initial speed=25m/s  The gravity g=10m/s  To find the height of the building

Q: A graph of v(t) is shown for a world-class track sprinter in a 100-m race. (See figure below. For…

A: Average velocity is given by, vavg=Total displacementTotal time. Displacement is given by the area…

Q: (a) express the height, h, of the object above the ground as a function of time, t; and (b) use the…

A:

Q: Water drips from the lower tip of the stalactite, which is 4.0 m above the ground. At the moment…

A: SOlution: h = 4m At the moment when one drop hits the ground, the next drop is in the air, and a…

Q: A person on the top of a roof of a building (100 m) drops a ball. After 2s passed, a person who…

A: Given: The height of the building is 100 m. The person on the ground throws another ball after 2 s…

Q: A truck travels up a hill with a 12 degree incline. The truck has a constant speed of 25 m/s. What…

A:

Q: A diver drops from a 10m platform with an initial velocity of 0. What was the velocity immediately…

A: Given Initial velocity (u) = 0 Height = 10 m

Q: A small rock is thrown vertically upward with a speed of 22 m/s from the edge of the roof of a…

A:

Q: Velocity (m/s) 14 12 00 0 2 Runner Velocity vs. Time 6 Time (s) 8 10 (a) What is his average…

A:

Q: An rock is thrown straight up with an initial velocity of 18.5 m/s. What maximum height will the…

A: Given data:  Initial velocity (V0) = 18.5 m/s Acceleration due to gravity (a) = 9.80 m/s2,…

Q: The acceleration due to gravity at Earth's surface is 9.80 m/s2. What is the acceleration at…

A: Planets have a large amount of mass and hence a large gravitational field. They will attract…

Q: AN object is thrown upward at a velocity of 4.0 m/s on planet x. Four seconds later it has a…

A: Given Data: The unknown planet is named "X" Initial velocity in Upward direction, u1=4 m/s Travel…

Q: A skydiver jumps out of a helicopter and falls freely for 6.0 s before opening the parachute. (a)…

A:

Q: A skydiver falls d1=355md1=355m in t1=8.7st1=8.7s before opening her parachute. After the chute…

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Q: A small stone is thrown straight up with an initial speed of 15 m/s from an initial height of 1.5 m.…

A: Given Data : The initial speed of the stone is given as vi=15 ms The initial height of the stone is…

Q: Classify the following values in the appropriate quantity. Displacement No Answers Chosen Velocity…

A: Given that, there have two type quantity  first is displacement , and other is velocity .

Q: A small mailbag is released from a helicopter that is descending steadily at 2.94 m/s. (a) After…

A:

Q: A small rock is thrown vertically upward with a speed of 29.0 m/s from the edge of the roof of a…

A:

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –