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He uses muscular energy to impart forward momentum to the rock,
in the amount of MRVR = 20 kilogram-miles per second.
Since the total momentum of the boy-skateboard-rock system is conserved,
the boy and skateboard must acquire the same amount of momentum in the
opposite direction.
M(B+S)V(B+S) = 20
V(B+S) = 20 / M(B+S)
= 20 / 60 = 1/3 mile per second.
(The questioner's typo ... writing "miles per second" where he meant "meters per second" ...
makes this quite a story ! The boy's pitch is no ordinary fling, endowing the rock with over
32,000 joules of kinetic energy. Thereafter, the rock ... or whatever is left of it after its
incendiary trip through the atmosphere at 20 miles per second ... is well on its way to the
moon, while the boy and his skateboard recoil backwards at a mere 1,200 miles per hour.
But the physics and the arithmetic are sound, even if they have no resemblance to reality.)
What else can I help you with?
Combined Vectors that go only forward or backward are one demensional?
True
Is a vector combined that go only forward or backward are one dimensional?
Yes, a vector that can only move forward or backward is considered one-dimensional. In this case, it is represented along a single line, where movements can be quantified in one direction or the opposite. This characteristic defines its dimensionality, as there is only one degree of freedom.
Is it true that combined vectors that go only forward or backward are one dimensional?
Yes, it is true. In a one-dimensional space, vectors can only extend in one direction, either forward or backward along a single axis. Any combination of such vectors will still lie along that same line, maintaining the one-dimensional nature of the space.
A package weighed 1 3 more than half of the heaviest package the 2 combined weighed 100 kilograms how much does the smaller one weigh?
40 kg
What is newtons to kg?
Newtons and kilograms really measure different things (force versus mass). But if you assume normal Earth gravity, each kilogram has a weight of 9.8 Newtons. In this case, you can convert newtons to kilograms, dividing by 9.8.
What skateboard trick is a fs popshovit and a kickflip combined?
a hardflip
Combined Vectors that go only forward or backward are one demensional?
True
A parcel weighs 1 and half kilograms. A second weighs 800g more what is the combined weigh for the parcel?
A parcel weighs 1 and a half kilograms. A second parcel weighs 800g more what is the combined weight of the parcel.
Does a skate board have more wheels than a unicycle and tricycle?
It depends on the question. A Ripstick skateboard only has 2 wheels while a tricycle has 3 wheels. If you mean the number of wheels combined, then it will be equal, if you have a normal unicycle, skateboard, and tricycle.
How many cockatoos like max of 550 grams would it take to have a combined mass of 4.4 kilograms?
four
A child, a computer, and a bookshelf have combined mass of 36 kilograms. The child has a mass of 25 kilograms, and the computer has a mass of 2 kilograms. What is the mass of the bookshelf?
The mass of the bookshelf would be 36 kg - 25 kg (child's mass) - 2 kg (computer's mass) = 9 kg.
Is a vector combined that go only forward or backward are one dimensional?
Yes, a vector that can only move forward or backward is considered one-dimensional. In this case, it is represented along a single line, where movements can be quantified in one direction or the opposite. This characteristic defines its dimensionality, as there is only one degree of freedom.
With what speed will a skateboard move?
Depends on how much energy is applied to it. Actually, it depends on the potential energy of the slope on which it rides, combined with the weight of board and rider, and related to the drag of air resistance and the wheel bearings. Personally, I have reached in excess of 35 mph. This was in the mid seventies, so was more than a little suicidal--no helmet, no pads, on a busy road.
How can you combine a skateboard and scooter rack?
You can use a wall mount rack to combine a stakeboard and scooter rack. The wall mounted combined rack had a patent which was filled back in 2001. It helps to secure both products.
What is the weight of lungs and heart?
The heart weighs about 7-15 ounces (200-425 grams), while the lungs typically weigh about 2.2-2.9 pounds (1-1.3 kilograms) combined. These weights can vary depending on factors like age, gender, and overall health.
Is it true that combined vectors that go only forward or backward are one dimensional?
Yes, it is true. In a one-dimensional space, vectors can only extend in one direction, either forward or backward along a single axis. Any combination of such vectors will still lie along that same line, maintaining the one-dimensional nature of the space.
A package weighed 1 3 more than half of the heaviest package the 2 combined weighed 100 kilograms how much does the smaller one weigh?
40 kg
