When a ball was allowed to fall from rest from height h, a second ball was thrown up from the ground in the vertical direction. For two balls to meet at height h / 2, what should be the initial velocity of the second ball?

Q: A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed…

A:

Q: A package containing emergency medical supplies is dropped by a Red Cross helicopter in a remote…

A: The three kinematic equations of motion are

Q: A football is kicked from ground level with an initial velocity given by  v0x = 19.0 m/s  and  v0y…

A: Given data: v0x = 19.0 m/s v0y = 11.6 m/s Need to determine maximum height y does it rise, the time…

Q: A regulation volleyball court measures L = 18.0 meters in length and d = 2.43 meters in height. A…

A: Length of the volleyball court L=18 m, height of the volleyball court d=2.43 m and height from which…

Q: A ball is kicked with an initial velocity of 17.0 m/s in the horizontal direction and 14.0 m/s in…

A: Given Data:  Initial velocity of ball in horizontal direction is uh=17ms Initial velocity of ball in…

Q: Two students are on a balcony 18.6 m above the street. One student throws a ball (ball 1) vertically…

A: height of balcony above the ground (h) = 18.6 m Initial velocity of the first ball (u) = - 15.1…

Q: A cannon is fired with an initial horizontal velocity of 20 m/s and initial vertical velocity of 25…

A: Given data: The initial horizontal velocity,ux=20 m/s The initial vertical velocity, uy=25 m/s The…

Q: It’s summertime! An “attacker” at the base of your caimito tree, where its fruit is 3.65 m high…

A: Height of fruit from ground: hfruit = 3.65 m Initial speed of rock: u = 7.40 m/s Height of attacker…

Q: A particle starts from rest at a position x(0) = 0. Find the velocity v(t) and position y(t) of the…

A:

Q: A football is kicked from ground level with an initial velocity given by  v0x = 20.0 m/s  and  v0y =…

A: Write the expression for the maximum height

Q: A jet plane lands at a speed of V m/s and travels at the constant speed of V m/s for the first 5 s…

A: Given value--- A jet plane lands at a speed of V m/s and travels at the constant speed of V m/s for…

Q: A ball is thrown vertically upwards from the side of a bridge with a velocity of 11 m/sec.  On the…

A: Given,

Q: As soon as a ball was allowed to fall from rest from height h, a second ball was thrown upwards from…

A:

Q: A large boulder is ejected vertically upward from a volcano withan initial speed of 40.0 m/s. Ignore…

A: The time taken by the large boulder to reach the maximum height is as follows: v=u-gt…

Q: An athlete on a trampoline leaps straight up into the air with an initial speed of 9.0 m/s. Find the…

A: Given: Initial speed (u) of the athlete = 9.0m/s

Q: A stone is thrown upward with an initial velocity just to reach a point 78.4 m above the ground.…

A:

Q: A brick is thrown upward from the top of a building at an angle of 30° to the horizontal and with an…

A:

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

A:

Q: If a ball is thrown directly upwards with 4.6 x the initial speed of another ball, what is the ratio…

A:

Q: When one person launched a model rocket straight upwards, it will accelerate at 3.7g(g=9.81m/s^2)…

A: Given data: The initial acceleration of the rocket, a0=3.7g. The time interval during which the…

Q: Two friends are tossing balls from the main floor of the auditorium to the balcony. One person…

A:

Q: What is the velocity of the stone when it lands on the log? (b) How long does it take the stone to…

A: v denotes speed of the trunk (5 m/s) h denotes height of the bridge (75 m) gi s the gravitational…

Q: A brick is thrown upward from the top of a building at an angle of 15° to the horizontal and with an…

A:

Q: A football is kicked from ground level with an initial velocity given by  v0x = 18.5 m/s  and  v0y…

A: Given: The horizontal component of the initial speed is 18.5 m/s. The vertical component of the…

Q: A ball is thrown upward vertically with an initial velocity of 3.2 m/a. Find the maximum height for…

A: Write the kinematic equation, v2=u2+2as

Q: A rock is kicked with an initial horizontal velocity of 10.0 m/s in the positive x direction from…

A:

Q: A brick is thrown upward from the top of a building at an angle of 25° to the horizontal and with an…

A:

Q: A large boulder is ejected vertically upward from a volcano withan initial speed of 40.0 m/s. Ignore…

A: initial speed, u = 4m/s

Q: A girl standing on a bridge throws a stone vertically downward with an initial velocity of 15.0 m/s…

A: Velocity, u = 15 m/s Time, t = 2 s Height, h = ?

Q: A man  who  is  on  top  of  a roof  of  a  high  building  drops  a  piece  of  metallic material.…

A: Given The velocity of the second material is v=15 m/s. The time difference between the second piece…

Q: A juggler performs in a room whose ceiling is 4.62 m above the level of his hands. He throws a ball…

A: Given data: The height of ceiling is h=4.62 m. Initial velocity of first ball is u1=v0. Initial…

Q: A ball is thrown from the top of a building with an initial velocity of 10:0 m/s straight upward, at…

A: one dimensional equation of motion will apply here.

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: *60. Go Two arrows are shot vertically upward. The second arrow is shot after the first one, but…

A:

Q: A ball is dropped from a bridge 122.5 meters above a river. After the ball has been falling for two…

A: both balls will cover the same vertical distance and the time taken by the first ball will be 2…

Q: A ball is thrown vertically upward, which is the positive direction. A little later it returns to…

A: Write the kinematic equation of motion. Rearrange equation (I) to find the expression for initial…

Q: A ball is dropped from rest from a height h above the ground. Another ball is thrown vertically…

A: Given, For ball dropped, Initial velocity,u1=0 Initial position,s1=h Final position,s2=h3 For ball…

Projectile Motion