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In all problems, neglect air drag and use g- 10 m/s2 when needed....
do all please. 1. A 20 Kg cart moving at 10 m/s collides with a 10...
do
all please.
1. A 20 Kg cart moving at 10 m/s collides with a 10 Kg cart moving at 20 m/ s. The two carts stick to each other after the collision. Calculate the final speed of the carts just after the collision if () They were moving in the same direction direction (i.e. thefaster bumped the slower from behind) (ii) They were moving at 90° respect to each other. (ii) They were moving at 30° respect to each...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s along a horizontal road where a frictional force is 200N. Calculate the power developed by the engine. If the car now moves up an incline at the same constant speed, calculate the new power developed by the engine. Assume that the frictional force is still 200 N and that sin(theta)=1/20 where theta is the angle of the incline to the horizontal. Problem 2: An...
please ansa all A car travels around a curve with constant speed. The correct statement from...
please ansa all
A car travels around a curve with constant speed. The correct statement from the following is the car has an acceleration directed inward toward the center of the curve. the velocity of the car is constant. the car has an acceleration direction outward from the center of the curve. the car has zero acceleration. the car has an acceleration directed in the instantaneous direction of the velocity vector. A ball is whirled on the end of a...
answer all the above the car has an acceleration directed in the instantaneous direction of the...
answer all the above
the car has an acceleration directed in the instantaneous direction of the velocity vector. A ball is whirled on the end of a string in a horizontal circle at constant speed. Suddenly string breaks. Immediately after the string breaks, the ball will have a horizontal velocity away from the center of the circle have a horizontal velocity that is tangential to the circle. have a horizontal velocity toward the center of the circle. have a horizontal...
1. A soccer player can kick a ball with maximum initial speed 10 m/s. She kicked...
1. A soccer player can kick a ball with maximum initial speed 10 m/s. She kicked the ball at different angles to check how the horizontal distance to the point the ball hits the ground changes with the angle the ball is kicked. Calculate the horizontal distance for different angles and draw a graph of the horizontal distance versus the angle θ with the ground. What is the angle at which the distance is maximum? Can you explain why there...
1. a. A small ball (pelota) with mass m moves in a horizontal circumference, on the...
1. a. A small ball (pelota) with mass m moves in a horizontal
circumference, on the surface of a hemispherical bowl (cuenco)
without friction. The normal force N forms a (theta) angle
with the horizontal.
i. Indicate the direction and sense of the resultant force on
the ball.
ii. Draw the force diagram.
iii. Show that the net force module F of the ball is describe by
the next ecuation:
F=(mg)/(tan)
b. The bowl radius is 8.0 m and
....
(14.2) A block of mass m = 10 kg riding on a frictionless horizontal plane is...
(14.2) A block of mass m = 10 kg riding on a frictionless horizontal plane is subjected to five forces. The weight of the block and the normal force of contact with the plane both act in the vertical direction, cancel, and may be henceforth ignored. Three applied forces, →F1 , →F2 , →F3 , act horizontally on the block. The information that we have been able to gather about the applied forces is summarised as follows: F1 = 10...
53,54,55,56 ball is atta 58. position of 0.40 m and at the top of a frictionless...
53,54,55,56
ball is atta 58. position of 0.40 m and at the top of a frictionless slope at a height of 45 m. She follows the frictionless path shown in Figure 9 Calculate her speed at the second peak. (4.5) 53.) A snowboarder with a mass of 57 kg starts from rest the mass of 59. A ball of m equilibriurn simple har 25 m (a) Detern 45 m (b) Calcul halfwa (c) Whern what f frome Figure 9 Two...
1. Multiply the following and round your answer to the appropriate number of significant figures. ...
1. Multiply the following and round your answer to the appropriate number of significant figures. (3875.20) (0.102) 2. Add the following and round your answer to the appropriate number of significant figures. (3005.20) + (7.1225) 3. A ball is thrown straight up, reaches a maximum height, then falls to its initial height. As the ball is going up: a. its velocity points upward and its acceleration points downward. b. its velocity points downward and its acceleration...
Linear Momentum of an object is conserved At all times b. Only when the net external...
Linear Momentum of an object is conserved At all times b. Only when the net external force on the object is Zero When the net external torque on the object is Zero d. Never A truck of mass 4000 (kg) is moving at 10 (m/s). A car of mass 1000 (kg) is moving at 40 (m/s). So, the truck’s momentum, compared to the car, is Greater b. Smaller c. the same d. Cannot say without knowing their accelerations A 1000...
do
all please.
1. A 20 Kg cart moving at 10 m/s collides with a 10 Kg cart moving at 20 m/ s. The two carts stick to each other after the collision. Calculate the final speed of the carts just after the collision if () They were moving in the same direction direction (i.e. thefaster bumped the slower from behind) (ii) They were moving at 90° respect to each other. (ii) They were moving at 30° respect to each...
Problem 1: A car of mass 1000 kg moves at a constant speed of 20 m/s along a horizontal road where a frictional force is 200N. Calculate the power developed by the engine. If the car now moves up an incline at the same constant speed, calculate the new power developed by the engine. Assume that the frictional force is still 200 N and that sin(theta)=1/20 where theta is the angle of the incline to the horizontal. Problem 2: An...
please ansa all
A car travels around a curve with constant speed. The correct statement from the following is the car has an acceleration directed inward toward the center of the curve. the velocity of the car is constant. the car has an acceleration direction outward from the center of the curve. the car has zero acceleration. the car has an acceleration directed in the instantaneous direction of the velocity vector. A ball is whirled on the end of a...
answer all the above
the car has an acceleration directed in the instantaneous direction of the velocity vector. A ball is whirled on the end of a string in a horizontal circle at constant speed. Suddenly string breaks. Immediately after the string breaks, the ball will have a horizontal velocity away from the center of the circle have a horizontal velocity that is tangential to the circle. have a horizontal velocity toward the center of the circle. have a horizontal...
1. a. A small ball (pelota) with mass m moves in a horizontal
circumference, on the surface of a hemispherical bowl (cuenco)
without friction. The normal force N forms a (theta) angle
with the horizontal.
i. Indicate the direction and sense of the resultant force on
the ball.
ii. Draw the force diagram.
iii. Show that the net force module F of the ball is describe by
the next ecuation:
F=(mg)/(tan)
b. The bowl radius is 8.0 m and
....
53,54,55,56
ball is atta 58. position of 0.40 m and at the top of a frictionless slope at a height of 45 m. She follows the frictionless path shown in Figure 9 Calculate her speed at the second peak. (4.5) 53.) A snowboarder with a mass of 57 kg starts from rest the mass of 59. A ball of m equilibriurn simple har 25 m (a) Detern 45 m (b) Calcul halfwa (c) Whern what f frome Figure 9 Two...
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