Work = (force) x (distance) = m g H = (90) x (9.807) x (6) = 5,295.78 joules
Power = work/time = 5,295.78/3 = 1,765.26 watts = 2.366 horsepower
A physically impossible feat, but the math is bullet-proof.
To determine how high the ladder reaches, we can use the Pythagorean theorem. The ladder forms a right triangle with the height of the building and the distance from the building to the base of the ladder. In this case, the ladder is the hypotenuse (6 meters), the base is 1 meter, and we need to find the height (h). Using the formula ( h = \sqrt{6^2 - 1^2} = \sqrt{36 - 1} = \sqrt{35} \approx 5.92 ) meters. Thus, the ladder reaches approximately 5.92 meters up the building.
5 meters
To find the distance from the building where the heel of a 10-meter ladder should be placed to reach a height of 8 meters, we can use the Pythagorean theorem. Let ( d ) be the distance from the building. The equation is ( d^2 + 8^2 = 10^2 ). This simplifies to ( d^2 + 64 = 100 ), resulting in ( d^2 = 36 ), thus ( d = 6 ) meters. Therefore, the heel of the ladder should be placed 6 meters from the building.
To calculate the power required, we first need to determine the work done against gravity, which is given by the formula ( \text{Work} = m \cdot g \cdot h ), where ( m ) is mass (90 kg), ( g ) is the acceleration due to gravity (approximately 9.81 m/s²), and ( h ) is the height (6 m). This results in ( \text{Work} = 90 \cdot 9.81 \cdot 6 = 5298.6 ) joules. Power is then calculated as ( \text{Power} = \frac{\text{Work}}{\text{Time}} ), so ( \text{Power} = \frac{5298.6 \text{ J}}{3 \text{ s}} \approx 1766.2 ) watts. Therefore, approximately 1766 watts of power is required for the woman to climb the ladder in 3 seconds.
Two meters in measurement is approximately the height of a standard doorframe, which typically ranges from 1.9 to 2.1 meters. It's also the length of a large dining table or the height of a tall bookshelf. Additionally, a standard ladder can be around 2 meters tall when fully extended.
The angle of elevation of the ladder leaning against the wall is approximately 48.59 degrees.
To determine how high the ladder reaches, we can use the Pythagorean theorem. The ladder forms a right triangle with the height of the building and the distance from the building to the base of the ladder. In this case, the ladder is the hypotenuse (6 meters), the base is 1 meter, and we need to find the height (h). Using the formula ( h = \sqrt{6^2 - 1^2} = \sqrt{36 - 1} = \sqrt{35} \approx 5.92 ) meters. Thus, the ladder reaches approximately 5.92 meters up the building.
The work done by a 70kg person climbing a ladder depends on the height of the ladder, but can be calculated using the formula work = force x distance. The force is the person's weight (70kg x 9.8m/s^2) and the distance is the height of the ladder.
cos60=4.2cm/x x=4.2cm/cos60 x=8.4cm Therefore the height of the ladder is 8.4cm. However, i think you mean meters because that is a very tiny ladder lol.
15 meters, or less, depending on the angle.
The height of the ball after 3 seconds can be calculated using the formula for free fall: ( h = h_0 - \frac{1}{2} g t^2 ), where ( h_0 ) is the initial height (80 meters), ( g ) is the acceleration due to gravity (approximately 9.81 m/s²), and ( t ) is the time in seconds. After 3 seconds, the height is ( h = 80 - \frac{1}{2} \times 9.81 \times (3^2) ), which simplifies to ( h = 80 - 44.145 ). Therefore, the height of the ball after 3 seconds is approximately 35.855 meters.
5 meters
5 meters
To find the distance from the building where the heel of a 10-meter ladder should be placed to reach a height of 8 meters, we can use the Pythagorean theorem. Let ( d ) be the distance from the building. The equation is ( d^2 + 8^2 = 10^2 ). This simplifies to ( d^2 + 64 = 100 ), resulting in ( d^2 = 36 ), thus ( d = 6 ) meters. Therefore, the heel of the ladder should be placed 6 meters from the building.
A 22-foot ladder is equivalent to approximately 6.7 meters.
To calculate the power required, we first need to determine the work done against gravity, which is given by the formula ( \text{Work} = m \cdot g \cdot h ), where ( m ) is mass (90 kg), ( g ) is the acceleration due to gravity (approximately 9.81 m/s²), and ( h ) is the height (6 m). This results in ( \text{Work} = 90 \cdot 9.81 \cdot 6 = 5298.6 ) joules. Power is then calculated as ( \text{Power} = \frac{\text{Work}}{\text{Time}} ), so ( \text{Power} = \frac{5298.6 \text{ J}}{3 \text{ s}} \approx 1766.2 ) watts. Therefore, approximately 1766 watts of power is required for the woman to climb the ladder in 3 seconds.
Two meters in measurement is approximately the height of a standard doorframe, which typically ranges from 1.9 to 2.1 meters. It's also the length of a large dining table or the height of a tall bookshelf. Additionally, a standard ladder can be around 2 meters tall when fully extended.