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How do you Calculate the power output of a Person that bench presses 150 pounds 30 times in 10 seconds and moves the barbell a distance of 24 inches during each press?
Power is defined as work over time. Thus, we must first calculate the work involved in moving the barbell. W = Fd = 150 lbs * 2 ft = 300 ft-lbs per rep The work expended over the entire work out is thus 30 * 300 ft-lbs = 9000 ft-lbs. Since P = W/t, the power output is P = 9000 ft-lbs/10s = 900 ft-lbs/sec, which is about 1222 watts.
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The weight lifter used a force of 980N to raise the barbell over her head in 521 seconds approximately how much work did she do in raising the barbell?
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An object uniformly accelerates over a distance of 100 m in 20 seconds. What is the acceleration?
an object uniformly accerlerates over a distance of 100 m in 20 seconds. calculate the acceleration.
What is the speed of an object 10m from you for 2 seconds?
To calculate the speed of an object, we need to know the distance it travels and the time it takes. If the object is 10m away from you and travels that distance in 2 seconds, we can calculate its speed using the formula: Speed = Distance/Time. In this case, Speed = 10m/2s = 5 m/s.
What is the power expended when a barbell is lifted 2.2m in 2 seconds?
The power during the lift is (weight of the barbell in Newtons)/4.4 watts.Note:Power is not "expended". Energy is. Power is the rate at which energy is expended.
How do you calculate the distance of a lightning flash?
To calculate the distance to a lightning strike, count the number of seconds between seeing the lightning and hearing the thunder. Divide this number by 5 to get the distance in miles, or by 3 to get the distance in kilometers.
How do you calculate speed in miles per second?
The distance travelled, measured in miles divided by the time taken, measured in seconds.
How fast is 200 feet In 6 seconds?
To calculate the speed, divide the distance by the time: 200 feet ÷ 6 seconds = 33.33 feet per second.
If you are given the mass of an object in pounds the time in seconds and the distance in feet what must you do before you can calculate the momentum in SI units?
You must convert the mass from pounds to kilograms, time from seconds to seconds, and distance from feet to meters. Only then can you use the formula for momentum (momentum = mass * velocity) to calculate momentum in SI units (kg*m/s).
How do you calculate seconds when given meters per second?
You can't convert between seconds, and meters/second. If you have a problem that involves speeds, use the formula: distance = speed x time.
How far will a rubber ball fall in ten seconds?
The distance a rubber ball falls in 10 seconds will depend on the height from which it is dropped and the acceleration due to gravity. On Earth, neglecting air resistance, the general equation to calculate the distance fallen is: distance = 0.5 * acceleration due to gravity * time^2.
What is the average speed of the object during the first 4 seconds?
To calculate average speed, divide the total distance traveled by the time taken. If you have the distance and time values for the first 4 seconds, you can use this formula to find the average speed over that time interval.
How to calculate time?
To calculate time elapsed, subtract the starting time from the ending time. To convert hours to minutes, multiply by 60. To convert minutes to seconds, multiply by 60.
