a stuntman drives a car at the speed of 20 m/s off a 32 m cliff the road leading

Question

a stuntman drives a car at the speed of 20 m/s off a 32 m cliff the road leading to the cleft is inclined Upward at an angle of 20 degrees

what is the car's impact speed? from the base to the cliff the car lands 63 m

eld-14489608&OpenVellumHMAC-bd3a7769ca872b420; D openvellum.ecollege.com/course.html?cours Secure l https://session.masteringphysics.com/myct/itemView?assignmentProblemID-8972721 Problem 4.57 Express your answer to two signifi x= 63 m A stunt man drives a car at a 32-m-high clf. The road leading to the clif is inclined upward at an angle of 20° Previous Answers Correct Part B What is the cars impact speed? Express your answer to two significant figu u= 1 Value | Units I Submit Request Answer F11 F12

Explanation / Answer

Solutin:-

Time required to cover 32 m in y-direction
=>- 32 = 20*sin 20 * t - 4.9*t^2

=> -4.9 t^2+6.84t+32=0

t = 3.35sec

so Range = 20*cos 20 * t = 62.96 m


B) Vy = 20*sin20 - 9.8*t = -25.98 m/s
Vx = 20 cos 20 = 18.794 m/s
so speed = sqrt (Vy^2 + Vx^2 )

= 32.06 m/s

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