Kinetic energy measures the amount of energy a person has as they are in motion. In this instance, the person who weighs 600 Newtons has more energy.
On earth, 3 kg weighs 29.4 newtons. On the moon, the same 3 kg weighs 4.8 newtons. On the way there and back, the same 3 kg weighs zero newtons.
The kinetic energy of the girl can be calculated using the formula: KE = 0.5 * mass * velocity^2. Converting her weight from kilos to pounds (1 kilo ≈ 2.205 pounds), she weighs approximately 66.1 pounds. Plugging in the values (mass = 66.1 lbs and velocity = 5 miles per hour), the kinetic energy can be calculated in joules.
Mass is a characteristic of the person or object. It stays with him/it and doesn't change no matter where he/it goes. "Newtons" is not a measurement of mass. It's a measurement of force, and it could represent the person's weight. If the person weighs 490 newtons on Earth, then his mass is about 50 kilograms anywhere, and he would weigh about 81 newtons on the moon.
'Kg' is a unit of mass, not weight. On Earth, 1 kg of mass weighs 9.8 newtons, and 1 newton is the weight of about 0.102 kg of mass. On the moon, the same kg of mass weighs 1.6 newtons, and 1 newton is the weight of about 0.616 kg of mass. On Mars, the same kg of mass weighs 3.7 newtons, and 1 newton is the weight of about 0.269 kg of mass.
On Venus, the acceleration due to gravity is about 8.87 m/s^2. Since weight (in newtons) is equal to mass (in kg) multiplied by acceleration due to gravity, the weight of 1 kg on Venus would be 8.87 newtons.
Since the ball weighs 1.3 newtons on earth, its mass is (1.3/9.8) kilograms.When tossed, its kinetic energy is (1/2 m V2) = (0.5 x (1.3/9.8) x 324) = 21.49 joules (rounded)This number is only valid at the instant the ball leaves the pitcher's hand. It immediatelybegins to lose kinetic energy as air resistance slows it down, but it also gains kinetic energyas gravity accelerates it toward the ground.
54kg in newtons on earth weighs 529.2 newtons.
On earth, 3 kg weighs 29.4 newtons. On the moon, the same 3 kg weighs 4.8 newtons. On the way there and back, the same 3 kg weighs zero newtons.
The object's kinetic energy can't be determined from the given information. Kinetic energy = (1/2) (mass) (speed)2 The question gives the object's mass, but we need its speed too.
A one kilogram mass weighs 9.81 Newtons
10 newtons
10 newtons
The kinetic energy of the girl can be calculated using the formula: KE = 0.5 * mass * velocity^2. Converting her weight from kilos to pounds (1 kilo ≈ 2.205 pounds), she weighs approximately 66.1 pounds. Plugging in the values (mass = 66.1 lbs and velocity = 5 miles per hour), the kinetic energy can be calculated in joules.
98 Newtons.
4.9966kg
A 25kg mass at the earth's surface weighs 25 x 9.8 Newtons = 245 Newtons
On earth, a mass of 5.306 kilograms weighs 52 newtons. That's some baseball ! More like a bowling ball.