A projectile is launched horizontally with an initial speed of v0 = 38.5 m/s at the...

A projectile is launched horizontally with an initial speed of v0 = 38.5 m/s at the top of a cliff in a lake (h = 80 m) What is the speed of the projectile when its height from the water is y = 30 m?

Expert Solution

Summary: speed of the projectile at B ( 30 m above water) =49.6 m/s

Kindly note the symbols used.

Vx and Vy for velocities at B( 30 m above water)

a( ay)for vertical acceleration.( Same as acceleration due to gravity)

S for displacement ( here 80-30 = 50)

t for time taken to reach B.

Ux for initial horizontal velocity ( at A)(given in the question as V0

Uy for vertical initial velocity( at A) = 0 m/s

genius_generous answered 1 year ago

A projectile (with mass 300g) is launched with an initial speed of 30 m/s at an...

A projectile (with mass 300g) is launched with an initial speed of 30 m/s at an angle of 32 degrees above the horizontal from the edge of a 20 m tall cliff. At the point in the trajectory where the projectile was at its maximum height, a 25g projectile is launched straight up into the first projectile. The smaller mass is traveling at 300 m/s and the two objects stick together. Calculate the percentage increase in height and total horizontal...

A projectile is launched with an initial speed of 60 m/s at an angle of 35°...

A projectile is launched with an initial speed of 60 m/s at an angle of 35° above the horizontal. The projectile lands on a hillside 4.0 s later. Neglect air friction. (a) What is the projectile's velocity at the highest point of its trajectory? m/s (b) What is the straight-line distance from where the projectile was launched to where it hits its target? m

A projectile is launched with an initial speed of 45.0 m/s at an angle of 40.0°...

A projectile is launched with an initial speed of 45.0 m/s at an angle of 40.0° above the horizontal. The projectile lands on a hillside 3.25 s later. Neglect air friction. (Assume that the +x-axis is to the right and the +y-axis is up along the page.) (a) What is the projectile's velocity at the highest point of its trajectory? magnitude ? m/s direction ? ° counterclockwise from the +x-axis (b) What is the straight-line distance from where the projectile...

A projectile is launched with an initial speed of 40.0 m/s at 60.0 degrees above the...

A projectile is launched with an initial speed of 40.0 m/s at 60.0 degrees above the horizontal. It hits the ground at the same height it was launched from. Neglect air resistance. a) What is the projectile's smallest speed as it moves through air? b) What is the projectile's smallest magnitude of acceleration as it moves through air? c) What is the projectile's speed 1.00 second after launch? d) What is the magnitude of the projectile's displacement 1.00 second after...

A projectile is launched with speed v0 and angle θ. Derive an expression for the projectile's...

A projectile is launched with speed v0 and angle θ. Derive an expression for the projectile's maximum height h. A baseball is hit with a speed of 35.0 m/s . Calculate its height if it is hit at an angle of 30.0 ∘ . A baseball is hit with a speed of 35.0 m/s . Calculate its distance traveled if it is hit at an angle of 30.0 ∘ . A baseball is hit with a speed of 35.0 m/s...

A projectile is launched with a speed of 45 m/s at an angle of 35 degrees...

A projectile is launched with a speed of 45 m/s at an angle of 35 degrees above the horizontal from the top of a wall. The projectile lands 250m from the base of the wall. a.) Determine the height of the wall. b.) Determine the impact velocity of the projectile

An object is launched horizontally with a speed of 78.8 m/s. It lands on the ground...

An object is launched horizontally with a speed of 78.8 m/s. It lands on the ground 19.6 m from where it was launched. How high above the ground was it launched from? Report your answer in SI units, rounded to two decimal places.

A projectile is launched at a height of 5ft. On the ground with an initial speed...

A projectile is launched at a height of 5ft. On the ground with an initial speed of 1000 feet per second and an angle of 60 with the horizontal. Use the movement of a projectile that does not consider air resistance and determines: The vector function that describes the position of the projectile The parametric equations that describe the motion The time it took for the projectile to go up The maximum height The time of flight The maximum horizontal...

A projectile is launched vertically from a launch pad with an unknown initial velocity, V0. An...

A projectile is launched vertically from a launch pad with an unknown initial velocity, V0. An unknown time, T, later, an observer is in a pickup which is traveling in such a way that the angle of elevation to the projectile is 22° and increasing at 2° per second. When the pickup is 750 m away from the launch pad, it is moving away from the launch pad at 25 m/sec. A) Find the initial velocity, V0. B) Find the...

1) A projectile is launched from the floor with an initial velocity of 5.0 m/s at...

1) A projectile is launched from the floor with an initial velocity of 5.0 m/s at an angle of 30 degrees upward of horizontal. a) For how long is the projectile in the air, as measured by the observer who launches the projectile? b) How far away horizontally from the launch point does the projectile land, as measured by the observer who launched it? c) It turns out that this projectile was launched and landed inside of a vehicle that...

Question