Car of mass 3641 kg falls from top of 270 m calculate how fast it is...
a flowerpot falls from a windowsill 25.0 m above the sidewalk. How fast is the flowerpot moving when it strikes the ground?
a ball whose mass is .35 kg falls from rest through a height of 5.3 m and then bounces back. it reaches a maximum height of 3.8 m after the bounce before falling to the ground again. from the beginning at 5.3 m to the height of 3.8 m after the bounce. the magnitude of its mechanical energy has changed by a) zero b) 13.0 J c) 0.52 J d) 5.15 J
5. A flowerpot falls from a windowsill 25.0 m above the sidewalk (a) How fast is the flowerpot moving when it strikes the ground? (b) How much time does a passerby on the sidewalk below have to move out of the way before the flowerpot hits the ground?
A package of mass m = 2.00 kg is released from rest at the top of an inclined plane as seen in the figure. The package starts out at heighth = 0.200 m above the top of the table, the table height is H = 2.00 m, and 0 = 50.0° R- (a) What is the acceleration (in m/s) of the package while it slides down the incline? 7.50 m/s² (b) What is the speed (in m/s) of the package...
A road has a hill with a top in the shape of a circular arc of radius 32.0 m. How fast can a car go over the top of the hill without losing contact with the ground?
A roller coaster car of mass 800 kg when released from rest at
point A (height h above the ground) slides along the track and
inside the loop of radius 16.0 m. The car never loses contact with
the track.
A) Draw below a free body diagram for the car the car at the top
of the loop.
B) If the normal force acting on the car at the top is 1500 N,
what is the speed of the car...
An elevator mass of 2600 kg falls from a height of 25 m after a sudden failure in the hoisting cable. The mass is stopped by a spring at the bottom of the shaft having a spring constant of 90 kN/m. Determine the spring's compression distance (in m) that brings the falling elevator momentarily to rest. An elevator mass of 2600 kg falls from a height of 25 m after a sudden failure in the hoisting cable. The mass is...
4. A roller-coaster car with a mass of 250 kg carries a 75 kg passenger and starts from rest from a point 20 m above the ground. At point C, it is 15 m above the ground. A. What is the initial potential energy of the car (in kJ) at point A? - 75 kg 250. kg B. What is the potential energy at point B? C. If the initial kinetic energy was zero and the work done against friction...
A roller coaster car of mass 800 kg when released from rest at
point A (height h above the ground) slides along the track and
inside the loop of radius 16.0 m. The car never loses contact with
the track.
A) Draw below a free body diagram for the car the car at the top
of the loop.
B) If the normal force acting on the car at the top is 1500 N,
what is the speed of the car...
A car of mass 500. kg on a roller coaster ride is raised from
the ground (horizontal dotted line) to point A as shown in the
diagram above. When the car passes point A, its speed is 5.0 m/s,
and then it rolls freely through the rest of the ride with
negligible friction, passing points B, C, D and E. Note that point
D is the highest portion of a circular loop, and point E is the
lowest portion of...