An Olympic hammer thrower executes a perfect throw and scores a distance of 86m. The hammer weighs 16 lbs, the hammer’s chain length is 4 feet, the length of the thrower’s arm is 3 feet, and the diameter of the pad is 2.5m. The heigth at which the hammer was thrown is 1.5 m. Neglecting air resistance, what would be the launch velocity of the hammer head? What is the magnitude of the force that the hammer thrower exerts on the hammer just before launch, in terms of the hammer’s weight at rest? What would that magnitude have to be if the pad were the width of a human body and the hammer had no chain?

An Olympic hammer thrower executes a perfect throw and scores a distance of 86m. The hammer weighs 16 lbs, the hammer’s chain length is 4 feet, the length of the thrower’s arm is 3 feet, and the diameter of the pad is 2.5m. The heigth at which the hammer was thrown is 1.5 m. Neglecting air resistance, what would be the launch velocity of the hammer head? What is the magnitude of the force that the hammer thrower exerts on the hammer just before launch, in terms of the hammer’s weight at rest? What would that magnitude have to be if the pad were the width of a human body and the hammer had no chain?

Similar questions

A box with mass 25.1 kg has an initial velocity of 2.66 m/s when a woman starts pushing the box with a constant force so that the net force on the box is 3.34 N. What distance has the box travelled when the velocity of the box 4.19 m/s?
A parachutist whose mass is 70 kg drops from a helicopter hovering 2500 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b₁ = 30 N-sec/m when the chute is closed and b₂ = 90 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 15 m/sec, after how many seconds will the parachutist reach the ground? Assume that the acceleration due to gravity is 9.81 m/sec². - The parachutist will reach the ground after (Round to two decimal places as needed.) * seconds.
help on this please!!
A block of ma65 m- 2.00 kg is released from rest ot h= 0.500m above the surface of a table, at the top of a e= 30.0°incline as shown below. The coefficient of kinetic friction between the block and the incline is 0,150. The incline is fixed on a table of height H= 2.00 m. (A.) What is the velocity of the block as it leaves the incline? Use the conservation of energy. (B.) How far from the toble will the block hit the floor? m h Н -R
A robot pushes a 20-kg box on the horizontal surface as part of the moving job. The force is 35 N to the left shown, and the box does not move. The coefficients of friction between the floor and box are µs = 0.75 and uk = 0.40. What is the minimum pushing force (magnitude only) needed to move the box, in Newtons? Useg = 10 m/s². Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.
A rocket is descending to the surface of Mars where g = 4 m/s ^ 2 . The rocket is initially 80 m above the planet's surface and is descending downward at 50 m/s. The mass of the rocket is 2500 kg. The rocket will land on the surface with a final velocity of 0. Our goal is to find the upward thrust force on the rocket to make this happen. Find the thrust force on the rocket ? Answer is 49,000 N, please show work.
Supposed a 52.5kg gymnast is climbing a rope. What is the tension in the rope, in newtons, if he climbs at a constant speed?
What magnitude of force is required to cause a 200kg car to change speed of 24 m/s to 8 m/s in a time of 8s?
A parachutist whose mass is 75 kg drops from a helicopter hovering 2500 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b₁ = 20 N-sec/m when the chute is closed and b₂ = 100 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 30 m/sec, after how many seconds will the parachutist reach the ground? Assume that the acceleration due to gravity is 9.81 m/sec². The parachutist will reach the ground after (Round to two decimal places as needed.) seconds.