Dark mode

Inclined planes and circular motion — Question 4

Original QCE Vault practice · 1 mark

Q4 · Practice questionSimple familiar1 mark

QUESTION 4

A

12.0\,\text{kg}

block rests on a frictionless plane inclined at

23^\circ

to the horizontal, as shown. What is the magnitude of the normal force?

Block on a 23 degree incline with force arrows

(A)

46.0\,\text{N}

(B)

108\,\text{N}

(C)

118\,\text{N}

(D)

128\,\text{N}

ABCD

Question linkSyllabus coverage

Related questions

Q5 · Original practice · 1 mark
A marker on a rotating platform moves in a circle of radius $0.85\,\text{m}$ with period $1.60\,\text{s}$ . What is its speed?
Inclined planes and circular motion
Q6 · Original practice · 1 mark
A $0.45\,\text{kg}$ object moves at $4.2\,\text{m s}^{-1}$ in a horizontal circle of radius $0.75\,\text{m}$ . What net inward force is required?
Inclined planes and circular motion
Q12 · Original practice · 1 mark
A block is sliding down a rough inclined plane. Which force acts parallel to the plane and up the slope?
Inclined planes and circular motion
Q60 · Original practice · 3 marks
A $9.0\,\text{kg}$ block slides down a $28^\circ$ incline. A constant friction force of $18\,\text{N}$ acts up the slope. Determine the block’s acceleration.
Inclined planes and circular motion