A 75 kg man jumps from a window 2.0 m above a sidewalk. The acceleration of gravity is 9.81 m/s² . a) What is his speed just before his feet strike the pavement? Answer in units of m/s. b) If the man jumps with his knees ana an- kles locked, the only cushion for his fall is approximately 0.44 cm in the pads of his feet. Calculate the magnitude of the average force exerted on him by the ground in this situation. Answer in units of N.

A 75 kg man jumps from a window 2.0 m above a sidewalk. The acceleration of gravity is 9.81 m/s² . a) What is his speed just before his feet strike the pavement? Answer in units of m/s. b) If the man jumps with his knees ana an- kles locked, the only cushion for his fall is approximately 0.44 cm in the pads of his feet. Calculate the magnitude of the average force exerted on him by the ground in this situation. Answer in units of N.

Name: Help needed with part B. Work needs to be shown. Thank you ! A 75 kg m
Uploaded: 2024-03-20T06:56:46.000Z
Channel: Bartleby
Description: Help needed with part B. Work needs to be shown. Thank you ! A 75 kg man jumps from a window 2.0 mabove a sidewalk.The acceleration of gravity is 9.81 m/s² .a) What is his speed just before his feetstrike the pavement?Answer in units of m/s.b) If the

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 76P: The CERN particle accelerator is circular with a circumference of 7.0 km. (a) What is the...

See similar textbooks

Similar questions

The CERN particle accelerator is circular with a circumference of 7.0 km. (a) What is the acceleration of the protons (m=1.671027kg)that move around the accelerator at 5of the speed of light? (The speed of light is v=3.00108m/s .) (b) What is the force on the protons?
A maglev train massing 1.5sy10? kq coasts up a 3. hill rising at an angle of 15° above The horieontalat an nitial speed Of 360 km/hr gIfthe h no trictiong train is effectively coasting with what is te maximumdir toice it camgoup the hi ll until it stoes? 大aus ' マフ Subua soJt I てプyud n9to Rusogら1 PJOMJO o y the train द force would The y have to exert todo so? how maca
Planet X was just discovered orbitinga nearby star! It orbits a start that is 6.9 times themass of our sun in a solar system just 31.3 light-years away. The acceleration due to gravity thereis 0.07 g. After making some measurements in lab, you start to daydream about travel to other planets. Your spring gun can launch a projectile with a speed of 3.7 m/s. What would happen if you were tolaunch a projectile at an angle of 32 ° abovehorizontal on Planet X? (a) What maximum height would the projectilereach?(b) How far would the projectile travel before ithit the ground? Assume the projectile lands at the same height it was launched from.
How high does a rocket go if 8.45 km/skm/s ? Ignore air resistance and the Earth's rotation.
On September 8, 2004, the Genesisspacecraft crashed in the Utah desert because its parachute did not open.The 210 kg capsule hit the ground at 311 km/h and penetrated the soilto a depth of 81.0 cm. What was its acceleration (in m/s2 and in g’s), assumed to be constant, during the crash?
What is earth’s escape velocity if the acceleration due to gravity is 9.8 m/s and theits radius is 6.378 x 106 meters?
A trucks brakes fail while driving down a hill at a speed of 92 km/hr at the emergency ramp shown. If θ=15º, determine the minimum ramp length L in meters necessary to stop the truck. Use g = 10 N/kg and neglect friction. Don;t forget to convert units.
2. An object is initially suspended at the height yo = 200 m above the surface of the Earth and at time to = 0 it is hurled downwards, with initial velocity -10 m/s. Neglecting air resistance, write an IVP for the object's velocity and solve it. Use g = 9.8.
a fish swimming in a horizantal plane has velocity vi=(4.00i+1.00j) m/s at the point in the ocean ehere the position relative to a certain rock is ri = (10.0i -4.00 j) m. after the fish swims with constant accleration for 20.0 s its velocity v=(20.0i-5.00j) m/s (a) what are the components of the accleration of the fish (b) what is the direction of its accleration with respect to unit vector i (c) if tthe fish maintain constant accleration where is it at t=25.0 s and in what direction isit moving
A car traveling at 20 m/sm/s runs out of gas while traveling up a 9.0 degree slope. How far will it coast before starting to roll back down? Express your answer in meters.
What do vectors and scalars have in common? How do they differ?
Check Your Understanding Verify that vector v V obtained in Example 2.14 is indeed a unit vector by computing its magnitude. If the convoy in Example 2.8 was moving across a desert flatland—that is, it the third component of its velocity was zero—what is the unit vector of its direction of motion? Which geographic direction does it represent?