Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 75-kg man just before contact with the ground has a speed of 4.6 m/s.
(a) In a stiff-legged landing he comes to a halt in 1.8 ms. Find the average net force that acts on him during this time.
N
(b) When he bends his knees, he comes to a halt in 0.10 s. Find the average force now.
(c) During the landing, the force of the ground on the man points upward, while the force due to gravity points downward. The average net force acting on the man includes both of these forces. Taking into account the directions of these forces, find the force of the ground on the man in parts (a) and (b).
stiff legged landing?
bent legged landing?
q1. for safety in climbing a mountaineer uses a nylon rope that is 69 m long and 1.0 cm in diameter. whilst supporting
A 1400 kg sports car accelerates from rest to 85in 7.0s. What is the average power delivered by the engine
Find out the position at which a third charge can be placed.
need full body diagram for An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel
A Girl is pushing on a 45 kg dresser with 300 N of force. The dresser has a coeficient of statice friction of 0.83 and a coeficient of kinetic friction of 0.55. How much is the force of friction on the dresser
A pitcher throws a curveball that reaches the catcher in 0.61 s. What is the angular displacement of the baseball
Consider the re?ection of light from a soap bubble. The bubble is a thin ?lm of water with air on both sides. Find the minimum thickness (nm) of the bubble so that reflected light constructively interferes
A curve of radius 152 m is banked at an angle of 11°. An 722-kg car negotiates the curve at 86 km/h without skidding. avoid the effects of air drag and rolling friction.
You're driving down the highway late one night at 18 when a deer steps onto the road 36 in front of you. The reaction time before stepping on the brakes is 0.50, and the maximum deceleration of your car is 12.
Suppose 2.5 mol of an ideal gas is taken from a 6m3 to a volume of 3 m3 via an isothermal compression at 30 0C. Find work done during the compression
A particular engine has a power output of 4.00 kW and an efficiency of 23.0%. Assume the engine expels 7000 J of energy in each cycle. Find the energy absorbed in each cycle
You drive west at 74km/h for 25min , then follow a road that goes 41^\circ south of west, driving at 93km/h for another 36min. Find your average speed for the trip
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd