QUESTIONS AND ANSWERS

Question A motorist travelling with a constant speed of 15 m/s (about 34 mi/h) passes a school-crossing corner, where the speed limit is 10 m/s… Read More »A motorist travelling with a constant speed of 15 m/s

Question A motorcyclist heading east through a small Iowa city accelerates after he passes the signpost marking the city limits. His acceleration is a constant… Read More »A motorcyclist heading east through a small Iowa city accelerates after he passes

Question An astronaut has left an orbiting spacecraft to test a new personal manoeuvring unit. As she moves along a straight line, her partner on… Read More »An Astronaut Has Left an Orbiting Spacecraft to Test

Question The nuclear mass of 141ba is 140.883 amu. calculate the binding energy per nucleon for 141ba. Answer The final answer to the above question… Read More »The nuclear mass of 141ba is 140.883 amu. calculate the binding energy per nucleon for 141ba.

Question The nuclear mass of 37cl is 36.9566 amu. calculate the binding energy per nucleon for 37cl. Answer The final answer to the above question… Read More »The nuclear mass of 37cl is 36.9566 amu. calculate the binding energy per nucleon for 37cl.

Question An object of mass 0.40kg attached to the end of a string is whirled round in a horizontal circle of radius 2.0m with a… Read More »An object of mass 0.40kg attached to the end of a string is whirled round

Question If a wheel 1.2m in diameter rotates at one revolution per second. Calculate the velocity of the wheel. Answer The velocity of the wheel… Read More »If a wheel 1.2m in diameter rotates at one revolution per second

Question A force F required to keep a 5 kg mass moving round a cycle of radius 3.5 m at a speed of 7 ms-1.… Read More »A force F required to keep a 5 kg mass moving round a cycle of radius 3.5 m at a speed

Question A body moves along a circular path with uniform angular speed of 0.6 rad/s. and at a constant speed of 3.0 meters per second.… Read More »A body moves along a circular path with uniform angular speed of 0.6 rad/s

Question A stone of mass 500g tied to a rope 50 cm long is whirled at an angular velocity of 12.0 radians per second. Calculate… Read More »A stone of mass 500g tied to a rope 50 cm long

Question The amplitude of SHM y=2(sin5πt+√2cosπt) is Answer The final answer to the amplitude of SHM is 2√3 Explanation From the equation of simple harmonic… Read More »The amplitude of SHM y=2(sin5πt+√2cosπt) is

Question An object of mass 4 kg goes round a circle of radius 0.5 m in 3.142 s. What is the force towards the center?… Read More »An object of mass 4 kg goes round a circle of radius 0.5 m

Question An object of mass 4 kg moves round a circle of radius 6m with a constant speed of 12 meters per second. Calculate the… Read More »An object of mass 4 kg moves round a circle of radius 6m

Question An object of weight 150 N moves with a speed of 4.5 m/s in a circular path of radius 3 m. Calculate the centripetal… Read More »An object of weight 150 N moves with a speed of 4.5 m/s

Question A car starts from rest and accelerates uniformly for 10 sec to a velocity of 8 m/s. It then runs at a constant velocity… Read More »A car starts from rest and accelerates uniformly for 10 sec to a velocity of 8 m/s. It then