4NA MYE Revision Mechanics_L2

The reading on a pair of vernier calipers is ____

• 6.33 cm

• 6.53 cm

• 7.43 cm

• 7.63 cm

The reading on a micrometer is ____

• 5.42 cm

• 7.22 cm

• 7.72 cm

• 10.22 cm

X and Y represent the centre and extreme right of a pendulum's oscillation. If it takes 0.2 s to travel from X to Y, what is its period?

• 0.4 s

• 0.6 s

• 0.8 s

• 1.0 s

• 0.4 N

• 2.5 N

• 10 N

• 20 N

The box travels at 2.0 m/s when pushed with a force of 10 N. What is the frictional force?

• 0 N

• 5 N

• 10 N

• 100 N

• 5 N

• 10 N

• 15 N

• 25 N

• 1250

• 2500

• 5000

• 10000

Moment of the 60 N force about the pivot is ____Nm

• 12 Nm

• 18 Nm

• 30 Nm

• 3000 Nm

A beam is pivoted as shown and held at equilibrium with a 60 N force. What is its weight?

• 40 N

• 60 N

• 90 N

• 100 N

Which part represents the greatest acceleration?

• A

• B

• C

• D