Estimate how fast was he running initially

Assignment Help Physics

Reference no: EM13550089

A 103 kg fullback runs at the line of scrimmage. A constant force of 3399 N must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.27 s. How fast was he running initially?

Reference no: EM13550089

Questions Cloud

Evaluate the number of micrograms of protein : 10 mL of an unknown sample was placed in a 100 mL volumetric flask and diluted to the mark with the appropriate solvent. This solution gave an absorbance reading of 0.973. Calculate the number of micrograms of protein in the original unknown sampl..

What is the speed of lightest star and heaviest star : The two stars in a binary star system have masses 2.2×1030 and 6.5×1030 . They are separated by 2.1×1012 .What is the system's rotation period, in years? What is the speed of the lightest star? What is the speed of the heaviest star?

What is the spring constant of the device : A (hypothetical) large slingshot is stretched 1.2 m to launch a 170 g projectile with speed sufficient to escape from Earth (11.2 km/s). What is the spring constant of the device

Compute the total kinetic energy of rotation : Each of the three helicopter rotor blades shown in the figure is 5.20 m long and has a mass of 286 kg. The rotor is rotating at 250 rev/min. What is the total kinetic energy of rotation

Estimate how fast was he running initially : A 103 kg fullback runs at the line of scrimmage. A constant force of 3399 N must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.27 s. How fast was he running initially

Initial kinetic energy is converted to heat energy : An aluminum block slides along a horizontal surface. The block has an initial speed of 11.0 m/s and an initial temperature of 10.7degrees C. The block eventually slides to rest due to friction.

Define a nacl solution contains nacl by mass : A NaCl solution contains 20.0% NaCl by mass and has a density of 1.15 g/mL. The molarity of the solution is: (hint: assume 1000. g of this solution)

Crate slides along a horizontal frictionless surface : A 12.5-kg crate slides along a horizontal frictionless surface at a constant speed of 4.0 m/s. The crate then slides down a frictionless incline and across a second horizontal surface as shown in the figure.

Explain an organic compound was synthesized : An organic compound was synthesized & a sample of it was analyzed & found to contain only C, H, N, O, & Cl. It was observed that when a 0.150g sample of the compound was burned it produced 0.138g CO2 & 0.0556g H2O.

User Account

All Pages