Calculate the value of t when Q is due north of P. (2) (Total 8 marks) 2. A train starts from rest at a station A and moves along a straight horizontal track. For the first 10 s‚ the train moves with constant acceleration 1.2 m s–2. For the next 24 s it moves with constant acceleration 0.75 m s–2. It then moves with constant speed for T seconds. Finally it slows down with constant deceleration 3 m s–2 until it comes to rest at a station B. (a) (b) (c) Show that‚ 34 s after leaving A‚ the speed
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Acceleration Worksheet 3 Worked Example A cheetah running at 20 m s−1 slows down as it approaches a stream. Within 3.0s‚ its speed has reduced to 2 m s−1. Calculate the average acceleration of the cheetah. Solve the following: 1. A sports car‚ accelerating from rest‚ was timed over 400 m and was found to reach a speed of 120 km h−1 in 18.0 s. a. What was the average speed of the car in m s−1? b. Calculate the average acceleration of the car in km h−1 s−1. c. What was
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Determination of the Acceleration Due to Gravity By A Good Student Abstract The acceleration due to gravity‚ g‚ was determined by dropping a metal bearing and measuring the free-fall time with a pendulum of known period. The measured value is 9.706 m/s2 with a standard deviation of 0.0317‚ which does not fall within the range of known terrestrial values. Centrifugal forces and altitude variations cannot account for the discrepancy. The calculation is very sensitive to the measured drop
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In Graham Bowley’s article “In an Era of Strife‚ Museums Collect History as It Happens” he describes the journey of Aaron Bryant‚ a curator for the National Museum of African American History and Culture. Bowley explains why Bryant believes collecting is crucial in the preservation of black history. Throughout the article‚ Bowley is effective in showing the importance of collecting history as it is presented through delivery‚ style‚ and ethos. The article highlights the work of Bryant and his colleagues
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APPLIED MECHANICS LABORATORY REPORT Title: The acceleration of a geared system Aim: To support the theory on the prediction of the motion of rotors connected by gears. Object: The main object of the experiment is: To investigate the theory on the prediction of the motion of rotors connected by the gears. By the falling weight method to evaluate the inertia on each shaft. Determine the equivalent inertia of the system at the first shaft‚ by the falling weight method. Test rig figure: The
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Lab Conclusion When comparing the average speed results from part two of the lab and the definition of acceleration‚ you find similarities between the two. First‚ average speed is distance divided by time‚ and we use it to describe the motion of an object moving at changing speeds. We can see this from our lab results from the average speed of the marble traveling down the ramp‚ because it picks up speed. When the marble is released at the top of the ramp‚ the ball doesn’t have the same momentum
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ROTATIONAL KINEMATICS‚ MOMENT OF INERTIA | 1. A child is pushing a merry-go-round. The angle through the merry-go-round has turned varies with time according to θ(t) = γt + βt3‚ where γ = 0.400 rad/s and β = 0.0120 rad/s3. a. Calculate the angular acceleration as a function of time. b. What is the initial value of the angular velocity? c. Calculate the instantaneous value of the angular velocity at t =5.00 s and the average angular velocity for the time interval t = 0 to t = 5.00 s. 2. At t
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M1 SUVAT Equations 1. An aircraft moves along a straight horizontal runway with constant acceleration. It passes a point A on the runway with speed 16 m s–1. It then passes the point B on the runway with speed 34 m s–1. The distance from A to B is 150 m. (a) Find the acceleration of the aircraft. (3) (b) Find the time taken by the aircraft in moving from A to B. (2) (c) Find‚ to 3 significant figures‚ the speed of the aircraft when it passes the point mid-way between A and B. (2) (Total
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Alexander Graham Bell a Scottish inventor‚ innovator and scientist. Born on March 3rd‚ 1847 and past away on August 2nd‚ 1922. Born and raised in Edinburgh‚ Scotland. He was the middle of three children‚ which were all boys‚ but sadly both of his brothers died of tuberculosis. His parents were Alexander Melville Bell (father) and Eliza Symonds Bell (mother). Alexander adopted his middle name Graham’ at the age of 11‚ out of admiration for a family friend called Alexander Graham. Bell was given
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Alexander Graham Bell‚ a man who best known for inventing the telephone. Most people don’t know he spent the majority of his life teaching and helping the deaf. Educating the hearing impaired is what he wished to be remembered for. Bell was born on March 3‚ 1847‚ in Edinburgh‚ Scotland. His mother was a painter of miniature portraits and also loved to play the piano even though she was nearly deaf. Aleck’s mother knew that he had a talent for music and always encouraged him to play (Matthews
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