40.0° 8) An object moves in a çircle of radius R at constant speed with a period T. You want to change only the period in order to cut the object's acceleration in half, Find the new period. ANS T2. to elp bira A A(E 0.0 rans bnucnp ebulinghm moo.rb sdhed aeveol 9) A hiker throws a stone from the upper JA (Cedge of a vertical cliff. The stone's Sbruinitial velocity is 25.0 m/s directed at Ihed orT ie TT e'lle 25.0 m/s Cliff 40.0° with the face of the cliff, as. ewanA shown in the figure. The stone hits the alelitosic ground 3.75 s after being thrown and mo bon eliesio1o feels no appreciable air resistance as amoo ioolev. isiti it falls. (a) What is the height of the cliff? (141 m). How far from the foot Ground of the cliff does the stone land? (60.3 m). How fast is the stone moving just before it hits the ground? (58.2 m/s) hiotjo emi enT 10) The speed of a projectile when it reaches its maximum height is one-half of its speed when it is at a half its maximum height. What is the initial projection angle of the projectile? Ignore air resistance. (67.8°) Slo offenipho ent to dhor n vibab 2i nO
40.0° 8) An object moves in a çircle of radius R at constant speed with a period T. You want to change only the period in order to cut the object's acceleration in half, Find the new period. ANS T2. to elp bira A A(E 0.0 rans bnucnp ebulinghm moo.rb sdhed aeveol 9) A hiker throws a stone from the upper JA (Cedge of a vertical cliff. The stone's Sbruinitial velocity is 25.0 m/s directed at Ihed orT ie TT e'lle 25.0 m/s Cliff 40.0° with the face of the cliff, as. ewanA shown in the figure. The stone hits the alelitosic ground 3.75 s after being thrown and mo bon eliesio1o feels no appreciable air resistance as amoo ioolev. isiti it falls. (a) What is the height of the cliff? (141 m). How far from the foot Ground of the cliff does the stone land? (60.3 m). How fast is the stone moving just before it hits the ground? (58.2 m/s) hiotjo emi enT 10) The speed of a projectile when it reaches its maximum height is one-half of its speed when it is at a half its maximum height. What is the initial projection angle of the projectile? Ignore air resistance. (67.8°) Slo offenipho ent to dhor n vibab 2i nO
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I have a question with problem 10
Transcribed Image Text:40.0°
8) An object moves in a çircle of radius R at constant speed with a period
T. You want to change only the period in order to cut the object's
acceleration in half, Find the new period. ANS T2.
to elp
bira A
A(E
0.0
rans bnucnp
ebulinghm
moo.rb
sdhed aeveol
9) A hiker throws a stone from the upper
JA (Cedge of a vertical cliff. The stone's
Sbruinitial velocity is 25.0 m/s directed at
Ihed orT ie
TT
e'lle
25.0 m/s
Cliff
40.0° with the face of the cliff, as.
ewanA
shown in the figure. The stone hits the
alelitosic
ground 3.75 s after being thrown and mo bon eliesio1o
feels no appreciable air resistance as amoo ioolev. isiti
it falls. (a) What is the height of the cliff? (141 m). How far from the foot
Ground
of the cliff does the stone land? (60.3 m). How fast is the stone moving
just before it hits the ground? (58.2 m/s)
hiotjo emi
enT
10)
The speed of a projectile when it reaches its maximum height is
one-half of its speed when it is at a half its maximum height. What is
the initial projection angle of the projectile? Ignore air resistance.
(67.8°)
Slo
offenipho ent to dhor
n vibab 2i nO
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