Math/Physics2
posted by Era .
The block has mass m=8.5 kg and lies on a fixed smooth frictionless plane tilted at an angle theta=20.0 degrees to the horizontal.
Determine the acceleration of the block as it slides down the plane.
If the block starts from rest 15.0 m up the plane from its base, what will be the block's speed when it reaches the bottom of the incline? Caption: Block on inclined plane.

Math/Physics2 
dfasdffas
do the damn problem noob

Math/Physics2 
Acceleration across the slope: mg sin theta, that is.. Assuming that there is no friction.. 9.8 m/s
Acceleration across the slope: mg sin theta, that is.. Assuming that there is no friction.. 9.8 m/s^2 X sin 20 = 3.35 m/s^s
PE = mgh;
KE = 1/2 X mv^2;
mgh= 1/2 X mv^2;
v = sqrt(2gh);
v = sqrt (294);
v = 17.1 m/s
Respond to this Question
Similar Questions

physics
A block slides down a rough plane. The plane makes an angle of 60 degrees with the horizontal, the weight of the block is 5.0N and the coefficient of kinetic (dynamic) friction between the block and the plane is 0.30. 1) determine … 
physics
A block lies on a smooth plane tilted at an angle è = 28.5° to the horizontal. Ignore friction. (a) Determine the acceleration of the block as it slides down the plane. 1 m/s2 (b) If the block starts from rest 9.40 m up the plane … 
Physics
a block , mass .10 kg, slides from rest without friction down an inclined plane 2m long which makes an angle of 20 degrees with the horizontal.(a) WWhat force accelerates the block down the plane? 
Physics
A 5.1 kg block slides down an inclined plane that makes an angle of 26 degrees with the horizontal. Starting from rest, the block slides a distance of 2.9 m in 4.6 s. The acceleration of gravity is 9.81 m/s2 . Find the coefficient … 
Physics
Block 1 (2.5kg) is on the surface of a frictionless inclined plane that makes an angle of 20 degrees with the horizontal. Assume g = 10 m/s2 magnitude of the acceleration of block 1 down the incline plane is 3.4 m/s2 How far does block … 
phsyics
The block shown in figure below lies on a smooth plane tilted at an angle è = 21.5° to the horizontal. Determine the acceleration of the block as it slides down the plane. Ignore friction. 
Physics
The block shown in (Figure 1) has mass m = 7.0 kg and lies on a fixed smooth frictionless plane tilted at an angle θ = 22.0 ∘ to the horizontal. If the block starts from rest 15.2 m up the plane from its base, what will … 
physic
The block shown in Figure 6 has mass 3500 g and lies on a plane which tilted at an angle θ = 22° to the horizontal. The effective coefficient of kinetic friction is 0.20. Determine the acceleration of the block as it slides down … 
physics
Acceleration of a Mass in a Pulley System Block 1 of mass m1 slides on a frictionless plane inclined at angle θ with respect to the horizontal. One end of a massless inextensible string is attached to block 1. The string is wound … 
physics
A block has a mass m=6.9kg and lies on a fixed smooth frictionless plane tilted at an angle of 24.4 to the horizontal. Determine the acceleration (in m/s2)of the block as it slides down the plane.