A baseball (m = 145g) traveling 31 m/s moves a fielder's glove backward 22 cm when the ball is caught. Part A What was the average force exerted by the ball on the glove?
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- An object with a mass of 1.76 kg is initially at rest upon a horizontal, frictionless surface. An applied force of 3.04 N i acts on the object for 2.08 s. What is the object's final speed? Enter a number rounded to 2 decimal places and assume the answer has proper SI Units.wo forces are acting on a 1.08 kg object. One force is directed completely in the negative x direction and has a magnitude of 8.3 N, The second force has a magnitude of 7.5 N and is directed 28∘28∘ to the right of the negative y axis. Assume standard Cartesian coordinates. Find the magnitude of the acceleration of the objectA motor exerts F = 20t2 N on the cable which pulls a crate (m = 25 kilos) towards the right. Variable t (time) is in seconds. After 4 seconds, what should be the velocity of the crate? Coefficients for friction are 0.3 (static) and 0.25 (kinetic).
- A PHYS 1510 student decides to take revenge on the awful Canadian Goose that has been chasing it all over the campus. The student ambushed the goose, jumping off a short wall to startle it. The student weighs 49.2kg. The wall is 1.47m tall. Initial speed was 1.767 m/s because the student pushed off when jumping. What was the student's speed when they reached the ground? (Include SI units)Two blocks are side by side. The larger is la kg lon the left), while the smaller is 5 Ka (on the right). block with a force of 75N, what is the Serce between the two blocks? Ianore friction. I push to the left on the smaller AFN 1a kg 5 Kq BLOCKS メイ F=75N FgA clever coyote uses rocket powered skates to try to catch a roadrunner. The mass of the coyote is 38.1 kg. If the coyote starts from rest, and accelerates to a final speed of 26 m/s in a distance of 2.4 m, how much thrust force did the rockets excert to get him to his final speed? Assume this thrust is constant over the 2.4 m.
- A young girl is riding a bicycle that has a total mass (including the kid) of 21.2 kg. The girl is moving at 5.99 m/s on a flat road when suddenly she slams on the brakes and skids to a stop in 8.22 meters. What was the magnitutde of the average force due to friction acting on the bicycle? Remeber, the magnitude of a force is always positive. Assume a constant friction force measured in Newtons and 3 significant digits in your answer.Two forces act on a 3.25 kg object, the gravitational force and a second, constant force. The object starts from rest and in 1.20 s is displaced (5.60î – 3.30j) m. Write the second force in unit vector notation. (Enter your answer in kg · m/s2. Assume the gravitational force acts in the -j direction.) kg - m/s? F =Two forces act on a 2.55 kg object, the gravitational force and a second, constant force. The object starts from rest and in 1.20 s is displaced (4.05î – 3.30j) m. Write th second force in unit vector notation. (Enter your answer in kg • m/s?. Assume the gravitational force acts in the -j direction.)
- Jennifer is walking at 1.22 m/s. If Jennifer weighs 552 N, what is the magnitude of hermomentum?A) 97.0 kg m/sB) 137 kg m/sC) 68.6 kg m/sD) 672 kg m/sE) 951 kg m/sA person doing a chin-up weighs 700 N, exclusive of the arms. During the first 25.0 cm of the lift, each arm exerts an upward force of 355 N on the torso. If the upward movement starts from rest, what is the person’s velocity at that point?A variable force F(x)=Ax2-Bx acts on an object. The units of F(x) are N and the values of A and B are A=6.09 and B=3.18 when x is in meters. The units of A and B are?