the figure here, a small block is sent through point A with a speed of 6.0 m/s. Its path is without friction until it reach ength L = 13 m, where the coefficient of kinetic friction is 0.79. The indicated heights are h1 = 5.3 m and h2 = 2.2 m. I beeds of the block at (a) point B and (b) point C? (c) Does the block reach point D? (d) If so, what is its speed there; if no hrough the section of friction does it travel? (a) Number i Unit (b) Number i Unit c) (d) Number i Unit

A skier starts at the top of a frictionless slope and pushes off with a speed of 3.0 m/s. The elevation of the slope is 40 m. She skis down the slope to a valley with elevation 0.0 m and then glides to the peak of an adjacent slope that is at an elevation of 25 m. Calculate her speed at the second peak

A man on a motorcycle plans to make a jump as shown in the figure. If he leaves the ramp with a speed of 32.0 m/s and has a speed of 29.9 m/s at the top of his trajectory, determine his maximum height (h) (in m) above the end of the ramp. Ignore friction and air resistance. ? m

As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction ?k = 0.510. Find h (in m) such that the block's speed after crossing the rough patch is 3.60 m/s. (Enter a number.)?m

The speed of a crate traveling on a horizontal frictional surface changes from vi=13 m/s to vf=11.5 m/s in a distance of d=8.5 m. (A) how long in seconds did it take for the crate to slow by this amount, assuming the acceleration is constant? (B) if the crate has a mass of 1kg, what is the power supplied to the crate by friction? (C) what is the coefficient of kinetic friction between the crate and the surface uk?

A helicopter is dellvering food in an emergency situation, where it is difficult to land. The engineer is tasked with determining what heights the package could be dropped without breaking. She knows that if the package strikes the ground faster than the critical speed of 62.0mph, then the package will break. Neglect drag At what height would the package hit the ground with the critical speed (in given units? Could the package be safely dropped from a height of 30m? yes no

A drone at too great a height drops a box. The box drops straight down the ground and hits at 100 m/s smashing the contents. Neglecting air friction, approximately, how high, in m, was the drone? O 360 O 720 O 250 O 510 O 25

Neglecting friction and air resistance, a car with an initial velocity of 43.1 km/h coasts up a hill and comes to stop at the hill's top. What must be the height of the hill (in meters)? Hint: you do not need the car's mass to solve this problem, but if interested to solve the problem using kinetic and potential energies you can use a mass of 2000kg for the car.

As shown in the figure below, a 2.25 kg block is released from rest on a ramp of height h. rough patch. mummy 15.0 cm When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction k = 0.710. Find h (in m) such that the block's speed after crossing the rough patch is 3.20 m/s. (Enter a number.) m t

A 3.00-kg block starts from rest at the top of an incline at height yo floor. It slides down the frictionless incline onto the floor, and then encounters a rough part of the floor that has a coefficient of kinetic friction u this surface before the floor is again frictionless. It then slides up another frictionless incline on the other side. (There are four situations here, labeled "0" through "3".) 2.50 m above the 0.500. It slides 2.00 m across m = 3.0 kg eirli isdi sio Sagote sroisd obila bold sorlt 29ob enibni 19io eritdd woH 2 0.506 9olaib orlt to lyl orli ei 2.0 m 2.5 m 1. What is the initial gravitational potential energy PE, of the block? (Use the floor as the reference point where PE = 0.) beunoes backwarnds with a velocity of-1.10 m/s. ision? Don't foeget about the sign. (You don't 2. What is the speed v, of the block just before it reaches the rough part of the floor?