IP2C: Answers for Kinematics Tutorial

Below are the answers to the Kinematics tutorial. Contact me if you have difficulty arriving at the correct answers.

Rectilinear Tutorial

D1) 30 ms^-1

D2) 0.143 s

D3) Speed = 87kmh^-1 (Yes he is speeding)

D4) 10th Floor

D5) (i) -7.00 ms^-1
(ii) 0.017 s
(iii) It is correct

Projectile Tutorial

D1) 20 mm

D2) Yes it can. However, only the vertical velocity may be used for transfer to potential energy, as horizontal velocity is constant throughout the whole time of flight.

D3) (a) Horizontal = 12.1 ms^-1; Vertical = 7.0 ms^-1
(b) 0.714 s
(c) 10 cars

D4) (a) B = C, D > E, E = F
(b) A
(c) B = C, E = F, D > E
(d) A
(e) C > B, F > E
(f) F

D5) Hit the road first. Answer went through in class.

D6) (c) a = -g/(2)(u^2)(cos^2theta)
b = tan theta
c = 0

Reminder: Tutorial and Assignment due Term 2 Week 2. Dynamics Tutorial & Assignment due Term 2 Week 2 as well.