An athlete performing a long jump leaves the ground at a 27.0° angle and lands 7.80 m away. (a) What was the takeoff speed? (b) If this speed were increased by just 5.0%, how much longer would the jump be? |
a)R = [v2sin(2θ)]/g
7.8 = [v2sin(2*27)]/9.8 => v= 9.72m/s
b) v = 9.72+ (9.72*0.05) = 10.206m/s
R=[v2sin(2θ)]/g = [10.2062sin(2*27)]/9.8 = 8.6m
An athlete performing a long jump leaves the ground at a 27.0° angle and lands 7.80...
An athlete performing a long jump leaves the ground at a 27.8 angle and lands 7.65 m away. Correct ▼ Part B If this speed were increased by just 3.0%, how much longer would the jump be? Express your answer using two significant figures and include the appropriate units A4=11 Value In Submit Previous Answers Regquest Answer X Incorrect; Try Again; 3 attempts remaining
An athlete executing a long jump leaves the ground at a 30 degree angle and travels 8.0 m. What was the takeoff speed?
#15 Problem 3.28 《 15of16 Part A An athiete performing a long jump leaves the ground at a 30.2 angle and lands 7.62 m away Value Units Request Answer nger weld to rp be? this speed were neeased byMst 50% how much Ad-Value Units Provide Feedback MacBook Pro 4
In performing the long jump, an athlete takes off at an angle of 22° and with an initial velocity of 9.2 m/s. Assuming that the take-off and landing heights of the body’s center of gravity are the same (in reality, they are not), calculate the horizontal distance that the athlete will jump.
A ski jumper leaves a ski jump at a speed of 24 m/s at an angle of 30 degrees. She ultimately lands 20 meters below where she left the jump. What is her speed when she hits the ground?
In a long jump, an athlete leaves the ground with an initial angular momentum that tends to rotate her body forward, threatening to ruin her landing. To counter this tendency, she rotates her outstretched arms to "take up" the angular momentum (see the figure below). In 0.650 s, one arm sweeps through 0.500 rev and the other arm sweeps through 1.000 rev. Treat each arm as a thin rod of mass 3.9 kg and length 0.59 m, rotating around one...
In a long jump, an athlete leaves the ground with an initial angular momentum that tends to rotate her body forward, threatening to ruin her landing. To counter this tendency, she rotates her outstretched arms to "take up" the angular momentum (see the figure below). In 0.730 s, one arm sweeps through 0.500 rev and the other arm sweeps through 1.000 rev. Treat each arm as a thin rod of mass 3.9 kg and length 0.56 m, rotating around one...
A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 11 m from the takeoff point. If the kangaroo leaves the ground at a 19 ∘ angle, what is its takeoff speed ? What is its horizontal speed?
A gray kangaroo can bound across level ground with each jump carrying it 8.9 m from the takeoff point. Typically the kangaroo leaves the ground at a 21 ∘ angle. If this is so: A-) What is its takeoff speed? B-) What is its maximum height above the ground?
AN Olympic long jumper leaves the ground at an angle of 30 degrees at a velocity of 10 m/s. a) what is the length of the jump if the jump is made on earth (g= 9.80 m/s^2)? b) what is the length of the jump if the jump is made on the moon (g= 1.60 m/s^2)?