block of mass m= 5 Kg is sent sliding up a large plane inclined at 0 = 37° while a horizontal force of magnitude 50 Newton acts on it. The coefficient of kinetic friction between the block and the plane is u= 0.3, and the coefficient of static friction is us= 0.35. g 5 The blocks initial speed is 4 m/s If the block reaches a highest point, does it remain at rest or slides back down the plane?

Bicýcle Down and Up Hill Example Wa. A Otros 1 of 20 Cons, of E E; = Es Giveni V; -10 mls Y; = 7m Part A A 63 kg person starts traveling from rest down a waterslide 7.0 m above the ground. At the bottom of the waterslide, it then curves upwards by 1.0 m above the ground such that the person is consequently launched into the air. Ignoring friction, how fast is the person moving upon leaving the waterslide? Express your answer with the appropriate units. Value Units Submit Request Answer Mostrar todos Págin Lab_Work Ener..docx a V Lab_Conserv.docx MacBook Air F10 吕口 F5 SC * & %

You want the final speed at the bottom of your roller coaster hill to be 25 m/s. What is the height (h) of the hill to achieve this?  Use g = 9.8 m/s2

1. Sam, whose mass is 75 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 200 N and a coefficient of kinetic friction on snow of 0.10. Unfortunately, the skis run out of fuel after only 10 s. A. What is Sam’s top speed? B. How far has Sam traveled when he finally coasts to a stop?

Forces: A 7.60×103 kg transport truck is approaching a 20.0° icy hill that has a bridge at the top that is out of service. The driver immediately slams on the brakes and begins to skid up the hill. The coefficient of kinetic friction between the tires and the hill is 0.350. If there is only 131 m from the bottom of the hill to the bridge what maximum speed can the truck initially be going and still avoid an accident?

Answer Saved Suppose the roller skating woman has a mass of 41.3 kg. Her roller blades have a coefficient of kinetic friction 4g = 0.0306 with respect to the street. She approaches the car, slowing to a speed of v = 6.23 m/s when she touches the car. If the average force she exerts to slow herself down has a magnitude of F = 68.3 N how long does it take for her to come to a stop?

An object released from rest slides down a frictionless ramp that makes an angle 0j of 60.0° with the horizontal. The object begins at a height Hj of 12.0 m above the base of the ramp. The bottom end of the ramp merges smoothly with a H second frictionless ramp that rises at angle 02 of 39.0°. H2 What distance d does the object slide along the second ramp before coming to a momentary stop? d = m When the object is on its way back down the second ramp, what is its speed vr at the moment that it is at a height H2 of 7.00 m above the base of the ramp? Uf = m/s

"roblem 8.54 Part A Determine a formula for the maximum height h that a rocket will reach if launched vertically from the Earth's surface with speed vo(< vesc). Express in terms of vn, TE, ME, and G. Express your answer in terms of the variable vo and constants rE, ME, and G. h = Submit Request Answer Part B How high does a rocket go if 8.45 km/s ? Ignore air resistance and the Earth's rotation. ? h = m Submit Request Answer Provide Feedback P Type here to search lyp

Inthe figure, a 3.9 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed is vo = 6.8 m/s, the height difference is h = 1.1m, and A. = 0.589. Find d. -0- He Number Units

5. Two identical blocks, each with mass m, both at rest initially, are connected, as shown. The surface is rough with the coefficient of kinetic friction 4. If the initial height is h, what are the speeds of the blocks once the hanging block hits the ground? h