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Mechanics | Relativity
A cylindrical fishing reel has a mass of 1.29 kg
and a radius of 3.41 cm. A friction clutch
in the reel exerts a restraining torque of
1.11 N · m if a fish pulls on the line. The fisherman gets a bite, and the reel begins to spin
with an angular acceleration of 56.4 rad/(s^2)
.
What force does the fish exert on the line?
Answer in units of N.
and a radius of 3.41 cm. A friction clutch
in the reel exerts a restraining torque of
1.11 N · m if a fish pulls on the line. The fisherman gets a bite, and the reel begins to spin
with an angular acceleration of 56.4 rad/(s^2)
.
What force does the fish exert on the line?
Answer in units of N.
Mechanics | Relativity
A car driving at a constant speed of 77 mi/h travels 73 miles. How many hours did this take?
Mechanics | Relativity
A crate is pushed along a floor with force of 450N. If frictional force is 120N and
gravitational force is 4000N, what is the net force on the crate?
gravitational force is 4000N, what is the net force on the crate?
Mechanics | Relativity
The coefficient of kinetic friction between an object and the surface upon which it is sliding is
0.40. The mass of the object is 3.2 kg. What is the force of friction?
0.40. The mass of the object is 3.2 kg. What is the force of friction?
Mechanics | Relativity
Name six (6) instruments used for measuring pressure and write short notes on each of them
Mechanics | Relativity
A CLOCK KEEP THE CORRECT TIME. WITH WHAT SPEED SHOULD IT MOVE RELATIVE TO OBSERVER SO THAT IT MAY SEEM TO LOSE 4 MIN IN 24 HOURS?
Mechanics | Relativity
VERIFY LAW OF CONSERVATION OF MOMENTUM AND LAW OF CONSERVATION OF KINETIC ENERGY ARE INVERIENT UNDER GALILIEAN TRANSFORMATION?
Mechanics | Relativity
A 62.7 kg skateboarder started at a height of 4.55 metres above the ground and finished at 5.70 metres above the ground. If the skateboarder ends up travelling at 6.00 m/s, and friction removes 120.0 J of energy, find the skateboarder’s original speed.
KE1 + PE1 = KE2 + PE2
I just not sure how I go about getting the answer.
KE1 + PE1 = KE2 + PE2
I just not sure how I go about getting the answer.
Mechanics | Relativity
On an interstate highway, you are traveling at 30 m/sec. The diameter of the wheels is 50 cm. How fast are the wheels rotating in revolutions/sec?
c. On your vacation, you visited several casinos in Las Vegas, and in one of them, you stopped by a roulette table. You observed that roulette wheel takes about 25 seconds to come to a stop, and it completed 40 revolutions in this time. How fast was it rotating at the very beginning before starting to slow down?
2.
a. Provide a mathematical definition of momentum, and provide its unit in the
MKS system of units.
b. In a game of billiards, there are usually 11 identical balls. In this problem,
we concentrate on two of them. The first one is hit by the player and moves at a speed of 14 m/sec, and it collides with a second stationary ball. The two balls stick together. What is the speed of the balls after the collision?
c. On your vacation, you visited several casinos in Las Vegas, and in one of them, you stopped by a roulette table. You observed that roulette wheel takes about 25 seconds to come to a stop, and it completed 40 revolutions in this time. How fast was it rotating at the very beginning before starting to slow down?
2.
a. Provide a mathematical definition of momentum, and provide its unit in the
MKS system of units.
b. In a game of billiards, there are usually 11 identical balls. In this problem,
we concentrate on two of them. The first one is hit by the player and moves at a speed of 14 m/sec, and it collides with a second stationary ball. The two balls stick together. What is the speed of the balls after the collision?
Mechanics | Relativity
A car starts from rest and accelerates uniformly on a rectilinear road.It reaches a speed of 72 km/h after 10s calculate its acceleration
