A man with a parachute jumps at a great height from an airplane moving horizontally. After 10 seconds, he opens his parachute. Find the velocity at the end of 15 seconds and his terminal velocity (i.e., the approximate velocity with chich he will float to the ground). Assume that the combined weight of man and parachute is 160 pounds, and the force of the air resistance us proportional to the first power of the velocity, equaling 4v when the parachute is closed and 10v when it is opened.

Q: line with a constant acceleration of -8 ms 2. A De in the direction that the particle is initially…

A:

Q: The boat is moving at 10m/s when its engine is shut down. Due to the hydrodynamic drag, its…

A: The given information are: When t=0, then v0=10 m/s and a=-0.05v2 . The information that needs to be…

Q: An object with an initial velocity of – 85 m/s undergoes an acceleration of a(t) = 6t + 18 m/s“, t…

A: Given, v=-85 at t=0. a=6t+18

Q: A rugby player with a mass of 126 kg and a velocity of 5.5 m s-1 tackles an opposition player who…

A: The velocity of the player with the ball after tackling is 6.882 m/s backwards.Explanation:Step…

Q: If the brakes on a car give the car a constant negative acceleration of 2k m/s?, where k is a…

A:

Q: The side of a square is measured to be 5 ft, with a possible error of +0.4 ft. Enter the exact…

A: (a) The side of the square is 5ft error in measurement of the side is±0.4 ft. Area of the square is…

Q: Using Newtons laws of motion we saw that while ignoring air resistance a body falling through the…

A: When air resistance is taken into account, the force due to air resistance is often modeled as being…

Q: A mass of 15 kilograms stretches the spring 0.5 meters. Use this information to find the spring…

A:

Q: A toy rocket is launched vertically upwards from the ground. After 5.5 seconds it begins to fall…

A: The relation between the velocity and time can be obtained using the formula v=u+at. Here, u is the…

Q: 1 mdv dt 10 dv dt = mg-bv; v(0) = v = (10) (9.81)-50 v

A: mdvdt=mg-bv, v0=v10dvdt=109.81-50v, v0=0

Q: Number 6

A: 6The velocity of a car is given by : v(t)=t2+2t here, v(t) is measured in ft/sec and t is measured…

Q: 9 The acceleration of a lift in a tall building is ½(t – 5) m/s² at time t seconds. At time t = 0,…

A: We have to find the number of floor at which the lift stops.

Q: A baseball player stands 5 meters from home plate and watches a pitch fly by. In the diagram, x is…

A:

Q: An object of mass 700 kg is released from rest 2000 m above the ground and allowed to fall under the…

A: Mass of the object = 700 kg b = 50 N-sec/m g = 9.81 m/s2 vo = 0 m/s The distance above the ground…