1. When s = 0.6 m, the spring is unstretched and the 10-kg block has a speed of 5 mls down the smoothplane. Determine the distance s when the block stops.k = 200 N/m5 m/sF= 100 N30/For educational purposes only.Page | 202. The small cart has a speed VA = 4 m/s at point A. Neglecting friction, determine its speed VB as itpasses point B. Is knowledge of the shape of the track necessary?A= 4 m/s1.8 mА3. The motor unit A is used to elevate the 300-kg cylinder at a constant rate of 2 m/s. If the powermeter B registers an electrical input of 2.20 kW, calculate the combined electrical and mechanicalefficiency e of the system.100 kg300 kg2 m/s4. The 10kg block is released from rest on the horizontal surface at point B, where the spring has beenstretched a distance of o.5m from its neutral position A. The coefficient of kinetic friction between theblock and the plane is o.30. Calculate the velocity of the block as it passes point A and the maximumdistance x to the left of A which the block goes.AB0.5 mk = 300 N/m10 kgHA = 0.305. The spring in the toy gun has an unstretched length of 10o mm. It is compressed and locked in theposition shown. When the trigger is pulled, the spring unstretches 12.5 mm, and the 20-g ball movesalong the barrel. Determine the speed of the ball when it leaves the gun. Neglect friction.50 mm150 mmk = 2 kN/m

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Answered: 1. When s = 0.6 m, the spring is…

1. When s = 0.6 m, the spring is unstretched and the 10-kg block has a speed of 5 mls down the smooth plane. Determine the distance s when the block stops. -k = 200 N/m 5 m/s F= 100 N 30

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

1. When s = 0.6 m, the spring is unstretched and the 10-kg block has a speed of 5 mls down the smooth
plane. Determine the distance s when the block stops.
k = 200 N/m
5 m/s
F= 100 N
30/
For educational purposes only.
Page | 20
2. The small cart has a speed VA = 4 m/s at point A. Neglecting friction, determine its speed VB as it
passes point B. Is knowledge of the shape of the track necessary?
A= 4 m/s
1.8 m
А
3. The motor unit A is used to elevate the 300-kg cylinder at a constant rate of 2 m/s. If the power
meter B registers an electrical input of 2.20 kW, calculate the combined electrical and mechanical
efficiency e of the system.
100 kg
300 kg
2 m/s
4. The 10kg block is released from rest on the horizontal surface at point B, where the spring has been
stretched a distance of o.5m from its neutral position A. The coefficient of kinetic friction between the
block and the plane is o.30. Calculate the velocity of the block as it passes point A and the maximum
distance x to the left of A which the block goes.
A
B
0.5 m
k = 300 N/m
10 kg
HA = 0.30
5. The spring in the toy gun has an unstretched length of 10o mm. It is compressed and locked in the
position shown. When the trigger is pulled, the spring unstretches 12.5 mm, and the 20-g ball moves
along the barrel. Determine the speed of the ball when it leaves the gun. Neglect friction.
50 mm
150 mm
k = 2 kN/m

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