A 422N block is sitting on a frictionless surface and is connected by a massless, extension-less rope over a frictionless pulley
to a 185N mass. What is the acceleration of the blocks and the tension in the cable.
1 answer:
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Answer:
41.02m
Explanation:
Given parameters:
Initial velocity = 0m/s
Final velocity = 96km/hr
Time taken = 3.07s
Unknown:
Distance traveled by the time the final speed was achieved = ?
Solution:
To solve this problem, we first find the acceleration of the car;
Acceleration =
v is the final velocity
u is the initial velocity
t is the time taken
Now convert the the final velocity to m/s;
96km/hr to m/s;
1 km/hr = 0.278m/s
96km/hr = 96 x 0.278 = 26.7m/s
Now;
Acceleration = = 8.69m/s²
So;
v² = u² + 2as
v is the final velocity
u is the initial velocity
a is the acceleration
s is the distance
26.7² = 0² + 2 x 8.69 x s
712.89 = 17.38s
s = 41.02m
Answer:
Explanation:
Given:
length of the stick,
position of holding the stick that acts as a hinge,
mass of the object,
position of hanging the mass on the meter stick,
new position of hanging the mass,
<u>Now the torque in the initial position:</u>
where:
acceleration due to gravity
Now when the mass is at the new position: