Four objects are located as follows: 3.70 kg at (0, +12.0 m), 2.80 kg at (-16.0...

Four objects are located as follows: 3.70 kg at (0, +12.0 m), 2.80 kg at (-16.0 m, 0), and 7.40 kg at
(+35.0 m, 0). Find the:

A) center of mass.

B) magnitude and direction of the force of gravity on the 3.70 kg object

C) total gravitational potential energy of the system.

Expert Solution

Thanks

genius_generous answered 2 years ago

Three objects are located as follows: 3.70 kg at (0, +12.0 m), 2.80 kg at (-16.0...

Three objects are located as follows: 3.70 kg at (0, +12.0 m), 2.80 kg at (-16.0 m, 0), and 7.40 kg at (+35.0 m, 0). Find the: A) center of mass. B) magnitude and direction of the force of gravity on the 3.70 kg object. C) total gravitational potential energy of the system

Objects with masses of 140 kg and a 440 kg are separated by 0.500 m. (a)...

Objects with masses of 140 kg and a 440 kg are separated by 0.500 m. (a) Find the net gravitational force exerted by these objects on a 43.0-kg object placed midway between them. Magnitude: (b) At what position (other than infinitely remote ones) can the 43.0-kg object be placed so as to experience a net force of zero? m from the 440-kg mass

Objects with masses of 165 kg and a 465 kg are separated by 0.390 m. (a)...

Objects with masses of 165 kg and a 465 kg are separated by 0.390 m. (a) Find the net gravitational force exerted by these objects on a 41.0 kg object placed midway between them. magnitude? direction? (b) At what position (other than infinitely remote ones) can the 41.0 kg object be placed so as to experience a net force of zero?

A truck with a mass of 1350 kg and moving with a speed of 12.0 m/s...

A truck with a mass of 1350 kg and moving with a speed of 12.0 m/s rear-ends a 821-kg car stopped at an intersection. The collision is approximately elastic since the car is in neutral, the brakes are off, the metal bumpers line up well and do not get damaged. Find the speed of both vehicles after the collision. vcar = ___________________ m/s vtruck = ____________________ m/s

A 4.20 kg steel ball strikes a wall with a speed of 12.0 m/s at an...

A 4.20 kg steel ball strikes a wall with a speed of 12.0 m/s at an angle of 60.0° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball? (Assume right is the positive direction.)

Billiard ball A of mass mA = 0.122 kg moving with speed vA = 2.80 m/s...

Billiard ball A of mass mA = 0.122 kg moving with speed vA = 2.80 m/s strikes ball B, initially at rest, of mass mB = 0.145 kg . As a result of the collision, ball A is deflected off at an angle of θ′A = 30.0∘ with a speed v′A = 2.10 m/s, and ball B moves with a speed v′B at an angle of θ′B to original direction of motion of ball A. 1) Solve these equations for...

Billiard ball A of mass mA = 0.116 kg moving with speed vA = 2.80 m/s...

Billiard ball A of mass mA = 0.116 kg moving with speed vA = 2.80 m/s strikes ball B, initially at rest, of mass mB = 0.135 kg . As a result of the collision, ball A is deflected off at an angle of θ′A = 30.0∘ with a speed v′A = 2.10 m/s, and ball B moves with a speed v′B at an angle of θ′B to original direction of motion of ball A. Solve these equations for the...

See-Saw. A 4.00-m see-saw of mass 60.0 kg is pivoted at the center. A 12.0-kg boy...

See-Saw. A 4.00-m see-saw of mass 60.0 kg is pivoted at the center. A 12.0-kg boy sits on the left side of the plank, such that his center of gravity is exactly on the edge. His friend sits on the right side of the plank, with her center of gravity 15.0 cm (0.150m) from the edge. At this configuration, the system is in static equilibrium. (a) What are the magnitudes of their moment arms about the point of support? (b)...

In a traditional xy-plane, there are 2 charged objects. At (x,y) = (8 m, 0 m),...

In a traditional xy-plane, there are 2 charged objects. At (x,y) = (8 m, 0 m), there is a 4 nC charge (Q1), and at (-5 m, 0 m), there is a -9 nC charge (Q2). What is the electric field at (0 m, 6 m)? What is the electric potential at (0 m, 6 m)? If a 7 nC charge were placed at (0 m, 6 m), what would be the force on it? If Gaussian sphere with radius...

A 12.0-kg package in a mail-sorting room slides 2.00 m down a chute that is inclined...

A 12.0-kg package in a mail-sorting room slides 2.00 m down a chute that is inclined at 53.0∘53.0∘ below the horizontal. The coefficient of kinetic friction between the package and the chute’s surface is 0.40. I know hot to calculate Work for each separate force on the package. But how would you use the Work Kinetic Energy Theorem to find the package's change in kinetic energy? Thanks!

Question