limitations of manures. Write any one function of the following: [3] (a) Lysosome (b) Golgi apparatus (c) Endoplasmic Reticulum (a) What is mixed cropping? (b) Write any two advantages of mixed cropping. 11. 12. 13. 14. [3] 15. The velocity time graph of a ball of mass 20 g moving along a straight line on a level ground is given below. How much force does the ground exert on the ball to bring it to rest? [3] 16. (a) A car accelerates uniformly from 18 kmh-1 to 36 kmh-1 in 5s.
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contains only vector quantities? A. mass‚ time B. force‚ velocity C. time‚ momentum D. acceleration‚ speed 2. An airplane heads due north with an airspeed of 75 m/s. The wind is blowing due west at 18 m/s. What is the airplane’s speed relative to the ground? A. 57 m/s B. 73 m/s C. 77 m/s D. 93 m/s 3. Two velocity vectors‚ v1 and v2 are shown. Which of the following best represents the resultant of the addition of the two velocity vectors? 4. A car travelling north at 20 m/s is later
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Velocity The word‚ velocity‚ originates from the Latin word‚ vēlōcitās‚ meaning swiftness or speed. Velocity is one of the basic words used in mathematics and physics and forms the basis for the more important formulae used in high level study of these subjects. According to the dictionary‚ the definition of velocity is the rate of change of position of an object. In simple words‚ velocity means the distance travelled by an object over some time divided by the time taken by the object to travel
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motion (1-D) with constant (uniform) velocity with constant (uniform) acceleration‚ e.g. free fall motion Projectile motion (2-D) x-component (horizontal) y-component (vertical) 2 Learning Outcome: 2.1 Linear Motion (2 hour) www.kmph.matrik.edu.my At the end of this chapter‚ students should be able to: Define and distinguish between i) distance and displacement‚ ii) speed and velocity‚ iii) instantaneous velocity‚ average velocity‚ uniform velocity iv) instantaneous acceleration‚ average
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between the moment the car left the table and the moment it hit the floor? b. What was the horizontal velocity of the car when it hit the ground? 3. A hawk in level flight above the ground drops the fish it caught. If the hawk’s horizontal speed is ‚ how far ahead of the drop point will the fish land? 4. A pistol is fired horizontally toward a target away‚ but at the same height. The bullet’s velocity is . How long does it take the bullet to get to the target? How far below the target does the bullet
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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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as plotting of the data on the graph. The velocity versus time graph came out to be a quadratic model‚ having a number of curves. Since this is based off of original measurements‚ any mistakes in measuring would have been multiplied when the velocity was calculated‚ so human error could be prevalent here as well. Conclusion Our hypothesis was only partially supported. The position versus time graph was a linear model‚ as predicted‚ but the velocity versus time graph was quadratic‚ not supporting
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initial height. A motion detector is mounted on the ceiling directly above the ball‚ facing down. So‚ the positive direction -- the away-from-the-detector direction -- is downward. Draw the position‚ velocity‚ and acceleration graphs. Since moving downward is a positive direction‚ is the velocity positive when the ball falls‚ 0 when it hits the ground‚ and then negative when it moves up? Is the accerlation positive (9.8) as the ball falls‚ very positive when it hits the ground‚ and then neg (almost
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Nnebe 601 ELA June 5‚ 2015 Rivers There are many advantages and disadvantages for living along rivers. Living near rivers helps people to meet their needs of eating food and other people’s needs such as their families. The river helps people to travel to different places by transportation such as ships‚ boats‚ and kayaks. Living near rivers can be advantageous. The river‚ such as the Nile‚ not only provides water but also helps to provide a good farmland. The river helps people to get stones and
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Q1. Figure 1 shows a solid cylindrical steel rod of length = 2.0 m and diameter D = 2.0 cm. What will be increase in its length when m = 80 kg block is attached to its bottom end? (Young’s modulus of steel = 1.9 × 1011 Pa) Fig# Answer: ∆L = FL mg = AY AY = = 0.0000262689 m A) B) C) D) E) 2.6 x 10-5 m 1.3 x 10-5 m 4.8 x 10-5 m 7.2 x 10-5 m 3.5 x 10-5 m Phys101 Term: 111 Final Tuesday‚ January 10‚ 2012 Code: 1 Page: 1 Q2. In Fig. 2‚ PQ is a horizontal uniform beam weighing
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