7) A ball thrown up from a rooftop of height 40.0 m lands on the ground in 4.10 s. (a) What is the ball's maximum height above the ground? (b) What is its velocity 15.0 m below the rooftop?

Q: A small ball is thrown straight up from just past the edge of the roof of a building. The ball is…

A:

Q: Problem 20:  A teenager on a bridge throws a rock with an initial speed of 11.49m/s . The release…

A: This problem can be solved by using conservation of energy:The initial height of the rock from the…

Q: Problem 2. A ball is thrown straight upward in the air at a speed of 15.0 m/s. Ignore air…

A: Given- Speed of ball (V) = 15 m/s. Acceleration due to gravity (g) = 9.8 m/s2

Q: You decide to launch a ball vertically so that a friend located 45 m above you can catch it, where…

A: Given data:  A ball is launched vertically upward Maximum height (hmax) = 45 m Required: The minimum…

Q: tiger leaps horizontally from a 7.6 m high rock and lands 9.5 m from the base. What was her initial…

A: Motion of projectile can be divided into x component and y component.

Q: A projectile is launched in the air from the ground with an initial velocity v0=66 m/s. What the…

A: Maximum height is given by, hmax=v20sin2θ2g

Q: horizontal projectile is shot with an initial velocity of 7.2 m/s from a height of 9.5 m above the…

A: Write the given values of the problem- Initial velocity(u) u=7.2 m/s height(h) h=9.5 m

Q: An attacker at the base of a castle wall 4.00 m high throws a rock straight up with speed 4.50 m/s…

A: Subpart (a): Note: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit…

Q: A projectile is fired from the ground, reaches a maximum height of 63.2 m and lands a distance of…

A: An object is said to be undergoing projectile motion if the entire motion depends only on the…

Q: A softball player stands at the top of a 30.0 m high building. She throws the softball up in the…

A: The height of the building, The height at which the ball is released from the top of the building is…

Q: Alice tosses a snowball from the window of her apartment. She tosses the snowball with a velocity of…

A: (a) The given scenario is similar to a projectile launched from a height. The horizontal and…

Q: A boy uses a slingshot to launch a pebble straight up into the air. The pebble reaches a height of…

A:

Q: A player hits a ball 35° above the horizontal 1.3 m above the ground. It clears a 4 m wall 125 m…

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: An olympic gymnast jumps up and down on a trampoline. If the gymnast's feet leave the trampoline at…

A: According to the principle of conservation of energy, the sum of the change in potential energy of…

Q: A boy stands at the edge of a bridge above a river. In both of the following scenarios, a stone is…

A: Given:-  A boy stands at the edge of a bridge above a river. In both of the following scenarios. A…

Q: A ball with a horizontal speed of 1.32 m/s rolls off a table 0.85 m above the floor. (a) How long…

A: Using kinematic equations and basic relations between distance, speed and time to solve the problem.

Q: A ball rolls off a 1.8 m high table with an initial speed 3.5. When it hits the ground, how far…

A:

Q: A rock is catapulted horizontally from a defense tower with the speed of 15 m/s. It lands 23 meters…

A: To determine,Part(a) How much time will it take for the rock to land on the ground.given,Initial…

Q: A stone is thrown upward from the top of a building at an angle of 30.0° to the horizontal and with…

A:

Q: A car drives straight off of a horizontal cliff with a speed of 45.3 m/s.  If it is in the air for…

A:

Q: A tiger leaps horizontally from a 8.0m high rock and lands 9.5m from the base.  What is her initial…

A:

Q: A child throws a snowball straight toward a tree with a horizontal velocity of 18 m/s. The tree is…

A: The child throws the snowball with an initial horizontal velocity of 18 m/s, towards a tree which is…

Q: They came between two buildings that are separated horizontally by a distance of 3.6m and a drop of…

A: Given that:- Distance between two buildings=3.6m

Q: The initial speed of a projectile fired upwards from ground level is 20 m/s, what its maximum…

A:

Q: A leopard leaps horizontally off a 7.5 m high rock with a speed of 12.2 m/s. How far will it land…

A:

Q: A projectile is thrown from the top of a cliff with an initial speed of 25 m/s at an angle of 600 up…

A:

Q: A brave cliff diver jumps off the cliff of Tropea, Calabria (Italy), from a height if 16.35 m, from…

A:

Q: A physics student throws a ball upward at 19.6 m/s from a window 58.8 m above the ground (A) How…

A:

Q: A horizontal projectile is shot with an initial velocity of 9.9 m/s from a height of 5.8 m above the…

A: Given: Initial speed of the projectile v0 = 9.9 m/s height above the ground h = 5.8 m/s   Find:  the…

Q: An object is shot horizontally for a height of 19.5 m and lands 15.1 m away. What was the initial…

A: Here we use equation of motion to solve the problem

Q: Before jumping from the bridge, Martin throws his water bottle to a friend standing on the bank of…

A: Basic physics concept.

Q: A projectile is launched off of a 19.6 m high building with an initial velocity of 26.4 m/s at an…

A: Given data: The initial velocity is u =26.4  m/s The projection angle is 33.2 degrees At the…

Q: A ball is thrown horizontally from the roof of a building 9.0 m tall and lands 8.5 m from the base.…

A: Height of building = 9m Horizontal distance covered by ball =8.5m Acceleration due to gravity…

Q: A hoodlum throws a stone vertically downward with an initial speed of 12.3 m/s from the roof of a…

A: a) To determine the time, y-y0=v0t+12at2-20.0m=-12.3m/st-129.8m/s2t24.9t2+12.3t-20=0t1=1.53t2=-3.88…

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.