Speed Worksheet Name _________________________ Period _____ 1. If Steve throws the football 50 meters in 3 seconds‚ what is the average speed (velocity) of the football? 2. If it takes Ashley 3 seconds to run from the batters box to first base at an average speed (velocity) of 6.5 meters per second‚ what is the distance she covers in that time? 3. Bart ran 5000 meters from the cops and an average speed (velocity) of 6 meters/second before he got caught. How long did he run
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with constant velocity. 3. The spring was extended to 3cm under mass of 500g. Determine the spring constant. 4. The distance between two planets of masses 25x1025kg and 30x1025kg is 1012km. Calculate the attractive force between them. 5. The load with mass m=1.5kg is attached to the string of length l=1.5m and moves along a vertical circle with constant velocity v=1.5m/s. What are the maximum and minimum tensions in the string and in what positions? Determine the angular speed‚ period and
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the club with a horizontal velocity of 20 m s–1. (Assume the acceleration due to gravity is 9.80 m s–2‚ and the effects of air resistance may be ignored unless otherwise stated.) a b c d e How long after the ball leaves the club will it land on the fairway? What horizontal distance will the ball travel before striking the fairway? What is the acceleration of the ball 0.5 s after being hit? Calculate the speed of the ball 0.80 s after it leaves the club. With what speed will the ball strike the ground
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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 its average
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Speed of Light Determining the speed of light is something that has been a very long and trying process. No one scientist could determine such a thing. Galileo was the first noted scientist to attempt experimentation on the speed of light. Other famous scientist‚ such as‚ Roemer‚ Foucault‚ Fizeau‚ Michelson‚ and Einstein added their own discoveries to the collage of information gathered through the years. Every scientist performed their experiments differently based on the knowledge and ability
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how is time‚ t related to the inclination of the track? Explain why? Time and position of velocity are interrelated to each other and the height and gravitational pull affects the acceleration of a moving and a free falling object. 3. From the data obtained‚ how would you account the difference between the picket fence’s acceleration and the value of g? The value of the slope of a graph of average velocity versus time will be the acceleration due to gravity of the falling object.
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Electromagnet even stronger?! To make the magnetic field even stronger‚ you need to apply more current to the circuit. SPEED! Speed is the velocity the object is travelling at. It can be measured by KM/H‚ MP/H‚ MP/S etc. It’s basically how far the object travels in a certain time. The equation for speed is: Speed=Distance÷Time. Distance=Speedxtime. Time=Distance÷Speed. ‘The space shuttle will travel the first 50‚000km of its journey in 2 hours. It will complete the second stage of its journey
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Laboratory – Terminal Velocity Introduction: Consider dropping a piece paper and a brick from the same height. Although in theory they should both strike the ground at the same time; in practice the brick will always strike the ground first. The reason is because of air resistance. As the paper falls to the ground air resistance is pushing the paper up‚ this slows the acceleration of the paper. It is known that as the velocity of an object increases the air resistance acting on the object
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relationship between the buoyant force on an object and weight of the liquid displaced by it. 5. State any two reasons for plant cells to have large central vacuole. [2] 6. List any four salient features of meristematic tissue. [2] 7. What is a super saturated solution? [2] 8.Give reason for the following:(a) A wet handkerchief is placed on the forehead of a person suffering from high fever. (b) We often sprinkle water on the road in summer. [3] 9. (a) Write four differences between true solution
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How road safety has changed over the years Why Speed Limits Have Changed During the last 100 years speed limits have changed in the UK‚ now in residential areas speed limits are generally 20mph to 30mph and on main roads the speed limit is 40mph. On the motorways the speed limit is raised to 70 mph. The first speed limit was 1865; this speed limit was 2mph in built up areas such as cities‚ towns and villages. This was then raised to 20mph and large fines were put in place for speeding and
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