University:
University of Greenwich
Course:
BSC152 | Engineering Physics
Academic year:

2023
Views:

240

Pages:

4
Author:

Jesly V

PROBLEMS BASED ON KINEMATIC EQUATIONS1.A jet plane starts from rest with uniformacceleration of 3 m/s and mates a the run forlength of the run way and twhat is velocity35 see befor taking off what is the minimumof the jet at take offGivenSol:vs=omlst = 35 Sa 3 m/sx = ?" ?case 1Distance covered +xvot+1/2at=OX35+1/2X 3 x 35 X 350+3X35X352x1837.5 mCase 2velocityVo + at+0+ 3. x 35= 105 m/s 2.Adriver fates 0.20 8 to apply the brakes. Ifba brakes cause a decceleration 6m/s2 Find thehe is driving car at a speed of 54 km/h anddistance travelled by the car after applyingsotthe brake.fol ->Given:vo= 54 km/h84x5=15 m/s18=mlsa = -6 m/swe have,v2 - vo 2 2as02- - (15)2 2 2x - 6 x x-(15x(15)=2x-6 x xx=(15x15)12= 18.75 m3.A race car accelerates on a straight road fromrest to a speed 180 km/h is 25 S. Assuminguniform accelerated of the car throughout findthe distance covered.Page No. 801 :-GivenVo=0 mlsV=180 km/h550 m/s180 xis=t=25SCase1to find out acceleration,= Vo + ata V-VO= )=( 50-0) 50 25 = m/s'2Case 2Distancex=vot+1/2at0=X25XX(25)= 625 m4.Abullettravellingwithavelocity of 16mls.whenittraitsafreefromcomestorestis0.4 m. Find the time fates during the retardationJohnGivenV= omlsDo 6cmlsS =0.4mt =?tofindtimeweeneedaccelerationPage No.