If the elevator was begin to moves upward with the acceleration of 1.3 m/s^2 and was attained the speed of 7.8m/s, then it maintains after 2 seconds which the elevator was begin to move, a boy standing 12m above the initial position of the top of elevator throws a ball upward with an initial velocity of 20m/s. Find the time when the ball will hit the elevator. ( Using calculus based physics)
If the elevator was begin to moves upward with the acceleration of 1.3 m/s^2 and was...
An elevator is moving upward with a velocity of 15 m/s. Three seconds later, the elevator is still moving upward, but its velocity has been reduced to 6.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval? After 3.0 s, If it maintains the same acceleration, what is the displacement of the elevator after 5 second time interval ? What will be the velocity after the 5 second ? Hint: Keep in mind that the...
2. The elevator (E) starts from rest and moves upward with a constant acceleration. If the counterweight (W) movesa distance of 32 feet in 4 seconds, determine: A. The acceleration of the elevator, B. The acceleration of point C on the cable, and C. The velocity of the elevator after 4 seconds. E.
the elevator have a mass of 1,325 kg and an upward acceleration of 2.1 m/s^2 , and tension is 15780.75 T So, The elevator now moves with constant upward velocity of 10 m/s. Find T
A hotel elevator ascends 200 m
with a maximum speed of 5.0 m/s. Its acceleration and deceleration
both have a magnitude of 1.0 m/s2. How far does the
elevator move while accelerating to full speed from rest? how long
does it take to make the complete trip from bottom to top?
2. MP HW P2.58 (Refer to example 2.10, p.47) A hotel elevator ascends 200m with maximum speed of 5m/s. Its acceleration and deceleration both have a magnitude of 1.0m/s...
A 500 kg elevator starts from rest. It moves upward for 2.50 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. a.) What is the average power of the elevator motor during this period? b.) How does this power compare with the motor power when the elevator moves at its cruising speed?
A 500 kg elevator starts from rest. It moves upward for 3.00 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. (a) What is the average power of the elevator motor during this period? W (b) How does this power compare with the motor power when the elevator moves at its cruising speed? Pcruising = W
An elevator is initially moving upward at a speed of 13.08 m/s. The elevator experiences a constant downward acceleration of magnitude 4.16 m/s2 for 2.79 s. (a) Find the magnitude and direction of the elevator's final velocity. magnitude direction ---Select--- upward downward none (b) How far did it move during the 2.79 s interval?
An elevator is initially moving upward at a speed of 12.60 m/s. The elevator experiences a constant downward acceleration of magnitude 3.92 m/s2 for 2.97 s (a) Find the magnitude and direction of the elevator's final velocity. magnitude direction !--Select--# (b) How far did it move during the 2.97 s interval?
A 686-kg elevator starts from rest and moves upward for 3.80 s with constant acceleration until it reaches its cruising speed, 1.70 m/s. (a) What is the average power of the elevator motor during this period? (b) How does this amount of power compare with its power during an upward trip with constant speed? (Give the power during an upward trip with constant speed)
A 612-kg elevator starts from rest and moves upward for 4.50 s with constant acceleration until it reaches its cruising speed, 1.64 m/s. (a) What is the average power of the elevator motor during this period? hp (b) How does this amount of power compare with its power during an upward trip with constant speed? (Give the power during an upward trip with constant speed.) hp