a 28kg block is connected to an empty 1.35kg bucket by a cord running over a frictionless pulley. the coefficient of static fric
tion between the table and the block is .450 and the coefficient of kinetic friction between the block and the table is .320. sand is gradually added to the bucket until the system just begins to move. calculate the mass of the sand added to the bucket
1 answer:
You might be interested in
Answer:
The right solution is "0.50 m/s²". A further explanation is provided below.
Explanation:
The given values are:
Mass,
m = 50 kg
Speed,
v = 10 m/s
Rolling friction acting backward (south),
f = 10 N
Air resistance acting backward (south),
= 15 N
The total force acting will be:
⇒
On substituting the given values, we get
⇒
⇒
Now,
⇒
On substituting the given values, we get
⇒
⇒
The horizontal acceleration will be "0.50 m/s²" because the (-)ve sign indicates it in south direction.