A curious child stands on the top of a 764 m skyscraper and drops a coin from the top of the building. How fast is the coin moving when it hits the ground? (This can be solved using at least two different physics principles. Use of Unit Three material is required for full credit. Solve it both ways and show the answer is the same for 5 points extra credit.)

Q: A soda can falls past your balcony at 3 m/s. Your balcony is 9 m off the ground. The soda can…

A: The given data are: u=3 m/sh1=9 mh2=5 m Here, u denotes the initial speed, h1 denotes the initial…

Q: The parachute on a race car of weight 8,850 N opens at the end of a quarter-mile run when the car is…

A: Given,

Q: A curious child stands on the top of a 607 m skyscraper and drops a coin from the top of the…

A:

Q: If a penny is dropped from the top of a 320 ft. building, how fast will it be moving when it hits…

A: Given:  u = 0 ft/s h = 320 ft  g = 32 ft/s2

Q: 3000 kg roller coaster car is released from rest at the top of a 50m tall hill. What will its…

A:

Q: Hulk starts at 7m, jumps to 16m, and then lands at 8m. What is the total distance covered? What his…

A: Starting point at 7m First jumped to 16m Then lands at 8m

Q: How far does the rocket ship travel

A:

Q: 8. One train is moving at 40 m/s and decelerates at 4 m/s', while another train is moving at 50 m/s…

A: Given: The train A moving  at velocity uA  = 40 m/s The deceleration of the train  aA      = -4 m/s2…

Q: A baseball player uses a very massive golden bat to hit a rubber ball off of a tee. If the bat is…

A: Given,

Q: A flower vase on a table slides off horizontally with a speed of 1.50 m/s. It statter in pieces on…

A: Given data: Initial velocity (u) = 1.50 m/s, horizontally Time (t) = 0.450 s Required: The height of…

Q: If you walk at an average speed of 4 m/s then in 5 seconds, you will have walked a distance of _."…

A: Average speed is (v) = 4 m/s Time taken (t) = 5 seconds

Q: An airplane travels 40 miles in 10 minutes, then travels 20 miles in 80 minutes. Is the pilot…

A: Given data :- distance d1 = 40 miles time t1 = 10 minutes distance d2 = 20 miles time t2 = 80…

Q: How far could you throw a ball if you were standing in the back of a moving pickup truck?

A:

Q: Given: In this pulley system, block A is moving downward with a speed of 6 feet per second while…

A: Given data: Speed for block A vA = 6 ft/s (downward) Speed for block C vC = 18 ft/s (downward)

Q: The parachute on a race car of weight 8,850 N opens at the end of a quarter-mile run when the car is…

A: Write the kinematic equation for velocity.

Q: Jan and Len throw identical rocks off a tall building at the same time. The ground near the building…

A: Given : speed of Jan rocks = u m/s Speed of Len rocks = 2u m/s Angle Len throw rock = 30° Height of…

Q: Compared to its mass on Earth the mass of an object on Moon is? less more zero the same

A: Weight on the moon is 1/6 th as that on the earth.  Means ; if weight on earth is 30 N then on the…

Q: t is the minimum time to go to Mars (min. distance 78.3 x 10^6 km)(1 km = 1000 m) if the rocket…

A: Distance of mars                          d = 78.3 × 106 km  Speed pf rocket…

Q: An object is thrown upward at a speed of 89 feet per second by a machine from a height of 7 feet off…

A:

Q: An object is thrown upward at a speed of 71 feet per second by a machine from a height of 8 feet off…

A: Height is given as  h=-16t2+71t+8…

Q: A stone is thrown downward with a speed of 16 m/s from a height of 17 m. (acceleration due to…

A: It is given that,

Q: a physics student to calculate how long it would take a penny to fall from a tower, 324m. how long…

A: Given data:  Height of tower (h) = 324 m Initial velocity (u) = 0 m/s Air resistance is negligible…

Q: The parachute on a race car of weight 8,850 N opens at the end of a quarter-mile run when the car is…

A: Given:

Q: The parachute on a race car of weight 8,850 N opens at the end of a quarter-mile run when the car is…

A: Given Data: Car weight, Initial velocity,    Final velocity, Distance,

Q: A 641-kg roller coaster car descends a 25-m-high hill with an initial velocity of 7 m/s. It then…

A: Since there is no loss of energy.Total energy at the top of the first hill=Total energy at the top…

Q: A projectile is launched at an angle of 30-degrees with the horizontal with a speed of 100 m/s. When…

A: Initial speed (vo) = 100 m/sAngle of projectile ( θ ) = 30°

Q: A roller coaster leaves the top of the first hill 30 m up at 2 m/s.  Find the height above the…

A:

Q: An airplane reaches a velocity of 80 m/s when it takes off. If the runway is 1 km in length, what…

A: Acceleration can be found by using equation of motion .