Call 1600-111-533 (toll-free) for info. Formula Booklet – Physics XI Dear students Most students tend to take it easy after the board examinations of Class X. The summer vacations immediately after Class X are a great opportunity for the students to race ahead of other students in the competitive world of IITJEE‚ where less than 2% students get selected every year for the prestigious institutes. Some students get governed completely by the emphasis laid by the teachers of the school in which they
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the specific energy E in an open channel with respect to channel bottom is defined by equation 1. E = y + v22g Eq. 1 Where E is the specific Energy in distance (L)‚ v is the velocity in (L/T)‚ y is the depth of flow in (L)‚ and g is the acceleration of gravity in (L/T2). Based on this equation‚ the energy before the weir is equal to the energy over the weir plus the height of the weir as shown in equation 2. E1 = E2 + Δz Eq. 2 From the known discharge‚ the velocity of the flow can be
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CHAPTER 1: Introduction‚ Measurement‚ Estimating Answers to Questions 1. (a) Fundamental standards should be accessible‚ invariable‚ indestructible‚ and reproducible. A particular person’s foot would not be very accessible‚ since the person could not be at more than one place at a time. The standard would be somewhat invariable if the person were an adult‚ but even then‚ due to swelling or injury‚ the length of the standard foot could change. The standard would not be indestructible – the foot would
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When an object (stone‚ spear‚ arrow or bullet) is thrown‚ hurled or shot in the air‚ the object is a PROJECTILE (“Projectile”). The study of projectile is important because it must be realized that they are very much part of man’s daily life then and now. Whether man likes it or not‚ he encounters and uses projectile in his everyday life. Our hunting ancestors threw stones and spears on animals to kill them for their food. In today’s sports‚ balls follow projectile motion such
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The lndian High School Revision -Term 1 Grade:9 Answer as many as Possible: ffi 4) State universal law of gravitation Express it mathematically. Differentiate between G’ and 91 in tabtrlat fotm’ 3) (a) What is acceleration ? Write ib unit. velocity’ bi I)t"* velocity-time graPh‚ when an obiect has (i) unifortdy accelerated (ii) uniformly retarded velocity. fror" that if u Uoayi" thrown ve*ically upwatd‚ the time of ascent is equal to the time ffi of descent. Th;;r*h .ttracts the
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equal to the distance traveled. | |3. A bullet moving horizontally to the right (+x direction) with a speed of 500 m/s strikes a sandbag and penetrates a distance | |of 10.0 cm. What is the average acceleration‚ in m/s2‚ of the bullet?(Points : 5) | | [pic]-1.25 x 103
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highway. Assuming a deceleration of 7.00 m/s2‚ estimate the speed of the car just before braking. [32.4 m/s] 6. Determine the stopping distances for an automobile with an initial speed of 90 km/h and human reaction time of 1.0 s: (a) for an acceleration a = –4.0 m/s2; (b) for a = – 8.0 m/s2. [103 m; 64.1 m] 7. A ball is hit almost straight up into the air with a speed of about 20 m/s. (a) How high does it go? (b) How long is it in the air? [20.4 m; 4.08 s] 8. A helicopter is ascending
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IMPORTANT QUESTIONS Physics · How much force is needed to accelerate a trolley of mass 20g through 1 m/s2. · A force of 100N acts on a mass of 25 kg for 5 s .What velocity does it generate? · A bullet leaves a rifle with a velocity of 100m/s and the rifle of mass 2.5 kg recoils with a velocity of 1m/s. find the mass of the bullet? · Certain force acting on a mass of 15kg for 3s‚ gives it a velocity of 2m/s. Find the magnitude of force. · A cricket ball of mass 0.15 kg is moving with
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Kinematics is one of the topics under dynamics. Kinematics describes motion without regard to its causes. In this experiment‚ kinematics focuses in one dimension: a motion along a straight line. This kind of motion‚ involves velocity‚ displacement‚ and acceleration with regards to time. The objectives of the experiment are to draw the displacement versus time graphs and velocity versus time graphs for uniform motion and uniformly accelerated motion‚ and to determine one’s normal reaction time and his reaction
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1. A 1.08 x 103 kg car uniformly accelerates for 12.0s from rest. During this time the car travels 132 m north. What is the net force acting on the car during this acceleration 2. A net force of 12 N is exerted on and to cause it to accelerate at a rate of 0.03 m/s2. Determine the mass of the encyclopedia. HYPERLINK http//fc.codmanacademy.org/branches/physicsofdriving2/pushingbuses.jpg INCLUDEPICTURE http//fc.codmanacademy.org/branches/physicsofdriving2/images/pagemaster/pushingbuses
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