A 10-N net force is applied for 5.0 s to a 12-kg box initially at rest. What is the speed of the box at the end of the 5.0 s interval? A. 7.5 m/s B. 5.25 m/s C. 4.17 m/s. D. 8.12 m/s

Q: 2) A rollercoaster cart starts at rest from a height of 60m above the ground before traveling…

A: Given: A rollercoaster cart starts at rest from a height, h = 60m above the ground before traveling…

Q: Identify whether the following is a scalar quantity or a vector quantity. a. 800 J of work b. 120 N…

A: Given data:  The physical quantities Required: Identify qualities as a scalar or a vector quantity

Q: If a 0.50 kg ball is moving at a speed of 12 m/s what is the kinetic energy of the ball? Equation is…

A:

Q: A wrecking ball is suspended from a 5.0-m-long cable that makes a 30° angle with the vertical. The…

A:

Q: فيزياء عامة )1( نظري A 25-g ball is released from rest 80m above the surface of Earth. During the…

A: Given: The mass of ball is m=25 g. The height is h=80 m. The energy consumed is E=15 J. The…

Q: If a stone is thrown straight upward with the initial velocity viy=14 m/s, what is the velocity of…

A:

Q: Q8: A ball of mass 0.5 kg is dropped from a height h=2.0 m above the ground as shown in the figure.…

A:

Q: 1. A roller coaster car with a mass of 2.1 x 10²kg is at rest at the top of a 40. m hill above the…

A:

Q: The work done in accelerating a body equals the body's change in.. A. Momentum B. Kinetic energy C.…

A: Work done by a force can be represented as, Here, F, d, and θ represent the force, the…

Q: The distance between two objects is increased by 3 times. The gravitational force between the…

A: The distance between 2 objects is made 3 times .  To find = gravitational force between the 2…

Q: Q10: A block having a mass of 1.0 kg is given an initial velocity VA-1.6 m/s to the right and…

A:

Q: Junry pulls his wife, who’s mass is 50 kg and who is sitting on a swing with rope of length 5 m,…

A: Mass: m = 50 kg Length of rope: l = 5m Initial speed : u = 0 m/s Initial angle: θ1 = 50o  Final…

Q: 1. A skateboarder with a mass of 90 kg is skating towards a ramp at 5 m/s. The skater begins to move…

A:

Q: A 60 HP electric motor lifts an elevator with a maximum total load capacity of 2000 kg. If the…

A: Given Data:  F=4000 N M=2000 kg g=10 m/sec2 P=60 HP 1HP=746 W

Q: A 3 kg pendulum bob on a string 5 m long is released with a velocity of 3 m/s when the support…

A: Given data: Mass (m) = 3 kg Length (L) = 5 m Initial velocity (u) = 3 m/s Angle (θ) = 25°, with the…

Q: 4.) A 25.0 kg rock is dropped from a height of 35.0 meters. Just before it lands, it is going 42.2…

A: Given data for Question 4 mass (m) = 25 kg height (h) = 35 m speed (v) = 42.2 m/s

Q: Which of the following is TRUE to an object thrown straight upward? A. The object’s kinetic energy…

A:

Q: As the object losses velocity, it also losses a. Elevation b. Kinetic energy c. Potential energy d.…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Do it

A: Given that-Mass of the ball: m= 0.2 kgHeight: h= 1.5 mEnergy: E= 0.6 JWe know that,Energy= mgh…

Q: A 1000-kg car is moving at 40.0 km/hr when the driver slams on the brakes and skids to a stop (with…

A:

Q: An object at rest may have __________. hint:g=10m/s/s. a. speed b. velocity c. acceleration…

A: An object at rest does not have speed or acceleration.

Q: Choose the correct definition of " Average Acceleration". 11 O a. Change in velocity divided by time…

A:

Q: A 13 kg mass object initially has 2500 J of kinetic energy. -1200 J of net work is then done on the…

A: Given: The mass of the object is 13 kg. The initial kinetic energy of the object  is 2500 J. The net…

Q: When an object is launched horizontally, what is the initial vertical velocity? a. 0 m/s b. It's…

A: When an object is launched horizontally, what is the initial vertical velocity?         When an…

Q: This quantity is defined mathematically as force times distance.  Choose the correct  letter only.…

A: Quantity mathematically defined as force times distance  i.e., Quantity = Force x distance = F d…

Q: A ball is thrown vertically upward in the air. While on its way up, it A. loses kinetic and gains…

A: three questions of kinematics.

Q: A roller coaster starts from rest at its highest point and then descends on its (frictionless)…

A:

Q: Q9: A 6.0 kg block initially at rest is pulled to the right along a horizontal surface by a constant…

A: Given value--- mass = 6 kg. applied force = 12 N. coefficient of kinetic friction = 0.15 . initial…

Q: What is 1kg+1m ? Select one: a. 0 O b. 2kg.m c. unknown O d. undefined e. 2(kg+m)

A: The addition of two quantities with different units are not possible. Only quantities with same unit…

Q: Q11: Two blocks are connected by a light string that passes over a frictionless pulley as shown. The…

A: The values given in the problem are:The mass of block 1 is given as: m1=1.25 kgThe mass of block 2…

Q: Two cars are moving. The first car has thrice the mass of the second car but only 1/3 as the kinetic…

A: Assume mass of second car is m. So, mass of first car is 3m. Kinetic energy of first car is 1/3 of…

Q: A skier at the top of a 12-m-high ski slope has an initial speed of 4.0 m/s. What is the speed of…

A: Given data:  Initial height (hi) = 12 m Initial speed (u) = 4.0 m/s Final height (hf) = 3.0 m…

Q: LETTER/ANSWER ONLY 1. TRUE or FALSE:  In an ELASTIC collision, momentum and kinetic energy of the…

A:

Q: O when it leaves the gun? O a. 5 m/s Ob. 20 m/s O c. 10 m./s cm. How last will a Gar

A: Spring constant = K = 250 N/m Compressed length = x = 5cm = 0.05 m Mass = m = 0.025 kg

Q: An object with mass m and a velocity v. What happens to Kinetic Energy when velocity is doubled? a.…

A:

Q: A track has three hills. A-18m, B=10m, C=5m. Mass of the ball=2kg. The ball descends down the first…

A:

Q: Which of the following statements correctly describes the relationship between an objects kinetic…

A:

Q: An object moving at 21.0 m/s has 1390 J of kinetic energy. What is the object's mass? A. 6.30 kg B.…

A: Given Object speed = v = 21.0 m/s Kinetic energy = K.E = 1390 J We have to calculate object's mass

Q: A student stands at the top of a building of height 50 m. He throws two identical balls with a speed…

A: These is a problem of kinematics under gravity. The ball thrown downward has initial speed of 20…

Q: A small object of mass m slides along the friction less track in the figure, staring from rest at…

A: Our answer is approximately is 8.9 m/sec