Pg

.42#:xkhls

*±toratl

Verticalve2.HN?fcos45vi:2.2xlOBgn48a=Ong

a. -9.8%2

stx . ? ddy=Omsdxt ? maxheightt

?

Bty= ?

✓f×Vey ,

?

2

ddy =

VjatttsaistOi@x0Dsin4s9stttte8sagot0-1ss.6est-49ndt2Os.4.9rgat2t1ss.b

}at

0 = . 4.9 at ( it - 31.755 )dt=o or At = 31.755

.? At = 32 s

b) +St =3 1.8 s

tin = 2.2×1023 cos 45°

ax = 0 Mls

bdx . vixattyaht2

od*Kxfo#as4ft3t8sf

Ddx = 4947 mDdx = 4.9×103 m

c) Max .

Height→E#ne⇒ .

• on

#9×103MX31.85 ✓

kj-2Cxk2mHsin45Vfy-OhysadjikyAttgaist2ayt-9.8mfr8dYs@ostin45gk9stzf9.o;f¢D

bdy - -2473 - 1239At = 15.95hmm,=l2}Yko3m

d)

Yj@o2msyIoY.yEvijtYagdyVfy2-ViydonsDlsin45DVfy-155.6nlsC.D

own ]

.

× component-1556mg [Right ]55.6 nls

tµlssbnls

rotted¥ - zzomls o .tai- 45°

Tjzxlinlsttltobidoofad

FRAMES OF REFERENCE & RELATIVE MOTION SPH4U – Unit 1 Dynamics

FRAME OF REFERENCE

| Frame of Reference – a coordinate system relative to which motion is described or observed

Examples: - cartesian grid ( x-y axis) - Compass rose

- the ground

INERTIAL FRAME OF REFERENCE

| A frame of reference that moves at a zero or constant velocity

| A frame in which the law of inertia holds

NON-INERTIAL FRAME OF REFERENCE

| A frame of reference that accelerates with respect to an inertial frame

| The law of inertia does not hold

FICTITIOUS FORCE

| An apparent but non-existent force invented to explain the motion of objects within an accelerating (non-inertial) frame of reference

APPARENT WEIGHT – VERTICAL ACCELERATION

| The magnitude of the normal force acting on an object in an accelerated (non-inertial) frame of reference

SOLVING PROBLEMS RELATING TO APPARENT WEIGHT IN A NON-INERTIAL FRAME OF REFERENCE