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Classical Mechanics
What is unit of action.
Classical Mechanics
What is kinetic enrgy of system which is in polar coordinates system.
Classical Mechanics
describe the failure of classical theory to explain black body radiation
Classical Mechanics
A particle is thrown into air with initial velocity −→v0 making angle θ0 with the horizontal as shown in Figure 2. The gravitational acceleration −→g and a time-dependent acceleration due to a wind act on the particle as shown in Figure 2. The acceleration due to the wind is given by aw = a0t where a0 is a constant. Find i) the time of maximum height, ii) the maximum height, iii) the time of flight, and iv) the range of the motion
Classical Mechanics
A lion starts 26m away from a clueless peter and charges towards him at a constant velocity of 50km/h,it takes peter 1 second to react to the lion,turn around and begin running to his vehicle at a velocity of +5m/s. Peter's Bentley is parked 6m away from him on the same axis as the lion's charge.
If peter escapes,how far is he from the lion..it if peter is caught,how far behind is the lion
If peter escapes,how far is he from the lion..it if peter is caught,how far behind is the lion
Classical Mechanics
In loading a delivery van, the driver pushed a 15 kg crate for
5 metres up a ramp. He had to push with a force of 132 N and
the vertical height gained was 1.3 m. What was the efficiency of
pushing this crate up the ramp onto the back of the van?
5 metres up a ramp. He had to push with a force of 132 N and
the vertical height gained was 1.3 m. What was the efficiency of
pushing this crate up the ramp onto the back of the van?
Classical Mechanics
What is the power of an electric motor, in watts, if it lifts
500 g, through 80 cm in 20 seconds?
(b) What is the motor’s efficiency if the electricity supplied it
with a total of 12 J to make the lift?
500 g, through 80 cm in 20 seconds?
(b) What is the motor’s efficiency if the electricity supplied it
with a total of 12 J to make the lift?
Classical Mechanics
A rope at a 45° angle from the roof and a rope at a 55° angle from the roof is holding a pizza that weighs 380 N you need to find the tension of both ropes. It is at equilibrium
Classical Mechanics
When a pendulum reaches the top of it's swing it stops briefly before starting to fall. What happens when the pendulum starts to fall?
Classical Mechanics
Block A, block E and load C are connected using cables as shown in Figure 4 and mass of each 20kg, 5kg and 5kg respectively. The inclined plane is smooth, and the coefficient of kinetic friction between the horizontal surface and block E is µk = 0.25. Angle of inclined plan is 600. i. ii. iii. iv. v. Draw a free body diagram (FBD) of the Block A, block E and load C. Determine kinetic friction force applied on the block E. Calculate acceleration of the system. Determine tension developed in the each cable. Determine resultant force applied on the block A parallel to the inclined plane.
