physics

Using the force-displacement diagram shown below. Calculate the work done.

A. 2000J B. 1000J C. 20J D. 5J Correct Answer: Option A A. 2000J

6 years ago

The period of oscillation pf a particle executing simple harmonic motion is 4π seconds. If the amplitude of oscillation is 3.0m. Calculate its period

A. 1.5ms‾¹ B. 3.0ms‾¹ C. 4.5ms‾¹ D. 6.0ms‾¹ Correct Answer: Option A A. 1.5ms‾¹

6 years ago

The bob of a simple pendulum takes 0.25s to swing from its equilibrium position to one extreme end. Calculate its period.

A. 0.25s B. 0.50s C. 0.75s D. 1.00s Correct Answer: Option D D. 1.00s

6 years ago

The resultant of two forces acting on an object is maximum when the angle between them is?

A. 180° B. 90° C. 45° D. 0° Correct Answer: Option B B. 90°

6 years ago

A uniform metre rule of mass 90g is provided at the 40cm mark. If the rule is in equilibrium with an unknown mass m placed at the 10cm mark and a 72g mass at the 70cm mark, determine M

A. 72g B. 102g C. 298g D. 504g Correct Answer: Option B B. 102g

6 years ago

A bus travelling at 15ms‾¹ accelerates uniformly at 4ms‾², what is the distance covered in 10s?

A. 150m B. 170m C. 350m D. 600m Correct Answer: Option C C. 350m

6 years ago

The driver of a car moving with uniform speed of 40m/s¹ observes a truck approaching from the opposite direction with a speed of 20m/s¹. Calculate the speed of the car relative to that of the truck

A. .5ms‾¹ B. 2.0ms‾¹ C. 20.0ms‾¹ D. 60.0ms‾¹ Correct Answer: Option D D. 60.0ms‾¹

6 years ago

A ball bearing is gently released from rest and allowed to fall through a viscous fluid. Which of the following statements about the motion is correct?

A. its acceleration decreases before terminal velocity is attained B. when terminal velocity is attained the acceleration of the fluid…

6 years ago

A wooden block of mass 1.6kg rest on a rough horizontal surface, if the limiting friction force between the block and the surface is 8N. Calculate the coefficient of friction. (g = 10m/s²)

A. 0.6 B. 0.5 C. 0.3 D. 0.2 Correct Answer: Option B B. 0.5

6 years ago

A uniform cylindrical hydrometer of mass 20g and cross sectional area 0.54cm² floats upright in a liquid. If 25cm of its length is submerged, calculate the relative density of the liquid. (Density of water = 1 gcm‾³)

A. 1.54 B. 1.48 C. 1.25 D. 0.80 Correct Answer: Option B B. 1.48 cm²

6 years ago
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