A 107 kg fireman jumps from the top of a 2.4 m vertical wall onto a...
A boy jumps vertically upwards fromthe top of a platform and then drops onto a trampoline which is 3m below his start point. If the trampoline has an effective spring constant 5.2x10^4N/m and is depressed 0.35m, calculate the boy's initia; upward velocity.
A 70.0-kg man jumps 1.00 m down onto a concrete walkway. His downward motion stops in 0.04 seconds. If he forgets to bend his knees, what force is transmitted to his leg bones? a. 8000 N b. 4000 N c. 700 N d. 16,000 N
A 65 kg skater runs at 5 m/s and jumps onto his 2.5 kg skateboard which was initially stationary. What is the velocity of the skater and the board after he lands?
a boy jumps at a 30 degree angle from the top of a 3.0 m hill with a velocity of 8.5 m/s. At what speed will he hit the ground?
A 165 lb student lands from a vertical jump and immediately jumps vertically again. The average ground reaction force is 1735 N which is applied for 0.33s. He was moving 1.2 m/s downwards when he first contacted the ground. What will his velocity be at takeoff? What will be his jump height?
a) A man jumps off the roof of an office building onto a trampoline 30 m below. His speed is 5 m/s when he umps from the roof and his mass (with all of her gear) is 60 kg. How high will he go when he bounces back up from the trampoline? You can assume his speed at the top of his bounce is zero. b) Describe the changes in mechanical energy that take place during his jump. c) A...
A frog spots a Lily pad in the water 2.50 m from the shore. He jumps off a tree branch 44 em above the shore at an angle of 35° above the horizontal with an initial velocity of 2.4 m/s. If the Lily pad is.12 em in diameter does he make his target or does he land in the water? No points for guessing. You must show your work 4.
4. A very long range cannon fires a cannon ball toward the equator from a northern lattude. ey the cannoneer aimed directly at his target and his range is correct, he wi a. Hit his target b. Miss his target to the east Miss his target to the west. d. Overshoot his target e. Undershoot his target. park ranger sees an escaped monkey hanging in a tree above him. He points his tranquilizing gun directly at the monkey. At monkey...
Crickets Chirpy and Milada jump from the top of a vertical cliff Chirpy just drops and reaches the ground in 3.70 s, while Milada jumps horizontally with an initial speed of 88.0 cm/s Part A How far from the base of the cliff will Milada hit the ground? Ignore air resistance. Express your answer with the appropriate units. μΑ th ? dValue Units Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part A How fast should...
1. A train at a constant 62.0 km/h moves east for 32.0 min, then in a direction 46.0° east of due north for 29.0 min, and then west for 42.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip? 2. A cart is propelled over an XX plane with acceleration components ax 5.5 m/s2 and ay = -2.3 m/s. Its initial velocity has components vox = 9.3 m/s and voy...