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- youtube.com/watch?v=srDeACrSf-o&t=12s In the video, I drop a ball off a three-story balcony. We know that objects in freefall follow the equation for height h, in meters, h=−4.9t2+ch=-4.9t2+c, where t is time in seconds, and c is the initial height. A student timed the drop at 1.51 seconds.Use this to determine the height from which the ball was dropped, to at least 2 decimal places.Explain the formula derivation of "Position as a function of time and acveleration". Describe it in your own words. Do not cite an example, simply use your own words.Figure 1 below shows the Burj (meaning tower) Khalifa building (830 m) with 160 floors/stories. A bullet was fired vertically upwards from the top of the 160th floor at 87m/s. Use the information above to answer questions 6 and 7. 6. Calculate the total time in which the bullet was in flight. 7 calculate the final velocity of the bullet just before it hits the ground.
- Solve using rectilinear motion principles car A at a gasoline station stays there for 10 min after a car B passes at an average speed of 40 mph. How long will it take car A moving at an average speed of 50 mph to overtake car B?A cannon ball is launched into the air with an upward velocity of 336 feet per second, from a 14-foot tall cannon. The height hh of the cannon ball after tt seconds can be found using the equation h=−16t2+336t+14h=-16t2+336t+14. A) What was the initial height of the cannon ball? feet B) How many seconds will it take for the cannon ball to hit the ground? seconds {Round to 3 decimal place.}Kian is driving 48 miles per hour and is speeding up to merge onto the highway he gradually accelerates at a rate of 7 miles per hour for several seconds the formula s = ut + 1/2 at^2 can be used to calculate the distance s an object travels in t seconds in the formula u represent the initial velocity and a represents a constant acceleration
- CONCEPT • 1. Derive the acceleration in terms of displacement. 2. Derive the velocity in terms of acceleration. • 3. Derive the displacement in terms of acceleration, initial velocity and time. • 4. Derive the displacement in terms of acceleration and velocity. • 5. Define all the formulas for free fall motion.A ball is kicked at 22.0m/s [30 degrees above horizontal]. Create an equation to find the time from known y-values, then create an equation to find dx from known x-values and finally combine the equations to find how far away the ball lands.Your favorite car goes zero to 60.0 mph in 5.00 seconds. Assuming it accelerates uniformly, sketch a velocity versus time graph of the motion. To three significant figures, the car travels ________ miles in the 5.00 seconds..
- A ball is dropped from the roof of a tall building and students in a physics class are asked to sketch a motion diagram for this situation. A student submits the diagram shown. Is the diagram correct? Explain.A ball is thrown vertically with velocity vi from a height of h = 50 m and lands on the ground after a time interval Δt. The positive y-direction is upward. Refer to the figure. 1 - What is the value of the vertical component of acceleration of the free fall motion in meters per second squared? 2 - Enter an expression for the vertical component of the total displacement of the motion, Δy, in terms of initial height h. 3 - Enter an expression for Δy in terms of Δt, a, and the vertical component of the initial velocity of the motion, vi. 4 - If the ball starts from rest, what is vi, in meters per second? 5 - Enter an expression for Δt in terms of a and Δy, in the case when the ball starts from rest. 6 - Calculate the fall time Δt, in seconds, when the ball starts from rest. 6 - Returning now to the general case, vi ≠ 0, enter an expression for the vertical component of the final velocity, vf, right before the ball hits the ground, in terms of vi, a, and Δt. 7 - Calculate the…A child drops a ball from a window. the ball strikes the ground in 3.0 seconds. what is the velocity of the ball the instant before it hits the ground? Is the acceleration due to gravity always negative or positive or it depends? Please explain in an easy to understand way.