A 2kg box is pushed by a force of 1 N for 4 seconds. It has...

Question

Question

Answer 1

Answer #1

137 N Fama 1-2 a azt tau sec 1 2 2 m/s V = Votat final velocity v = a + 4xy V = 4 m/s 0 P = m Vo = 2+2 = 4 m/s I=AP= Pp-pi Pa

Answer 2

Similar Homework Help Questions

A 1-kg ball in the air has an initial velocity vo = [ 10 ] i...

A 1-kg ball in the air has an initial velocity vo = [ 10 ] i + [ -20 ] j m/s. It falls for a total time of 1 s. Assume that positive x-values are to the right and positive y-values are upward. What is the initial kinetic energy Ki of the ball? J Remember that the initial kinetic energy Ki = pi2/2m. To find the magnitude of the resultant momentum we must use the pythagorean theorem on the...
A 1-kg ball in the air has an initial velocity vo = [ -20 ] i...

A 1-kg ball in the air has an initial velocity vo = [ -20 ] i + [ -20 ] j m/s. It falls for a total time of 1 s. Assume that positive x-values are to the right and positive y-values are upward. What is the initial momentum pi of the ball? -20 i + -20 j kg*m/s What is the impulse or change in momentum ∆p of the ball? 0 i + -10 j kg*m/s What is the final momentum pf of the ball?...
Block 1 (0.5 kg) travels with an Initial velocity of [ 40/1 601 m/s and then...

Block 1 (0.5 kg) travels with an Initial velocity of [ 40/1 601 m/s and then collides with block 2 (0.5 kg) travelling with an Inltial velocity of t-4011+I-401 1 m/s After the collision, block 1 has a final momentum of [ 51] + [ Qİ kg·m/s. Assume that no external forces are present and therefore the momentum for the system of blocks is conserved. What Is the Initial momentum of block 1? 1 + kg*m/s Setmit Ansee Tries 0/3...

Block 1 (0.5 kg) travels with an initial velocity of [ 60i ] + [ 60j...

Block 1 (0.5 kg) travels with an initial velocity of [ 60i ] + [ 60j ] m/s and then collides with block 2 (0.5 kg) traveling with an initial velocity of [ -60i ] + [ -60j ] m/s. After the collision, block 1 has a final momentum of [ 0i ] + [ -20j ] kg*m/s. Assume that no external forces are present and therefore the momentum for the system of blocks is conserved. What is the total...
A1300-kg can travels at 22 m/s and then quickly stops in 3.6 s to avoid an obstacle What is the i...

A1300-kg can travels at 22 m/s and then quickly stops in 3.6 s to avoid an obstacle What is the initial speed of the car in mph? mph Submit Answer Tries 0/2 What is the initial kinetic energy of the car in kilojoules (kJ)? kJ Submit Answer Tries 0/2 What is the initial momentum of the car? kg*m/s Submit Answer Tries 0/2 What is the magnitude of the impulse necessary to stop the car? kg*m/s Submit Answer Tries 0/2 What...
A 1300-kg rocket has a net propulsion force of 50 kN (kiloNewtons). Over a short time...

A 1300-kg rocket has a net propulsion force of 50 kN (kiloNewtons). Over a short time period, it uniformly speeds up from an initial velocity of 35 m/s to a final velocity of 60 m/s. Assume that the mass of the rocket is constant during this time period and that the net force is along the direction of motion. What is the change in speed of the rocket in m/s and in mph? m/s mph Submit Answer Tries 0/2 What...

1. Two asteroids collide head-on and stick together. Before the collision, asteroid A (mass 1,000 kg)...

1. Two asteroids collide head-on and stick together. Before the collision, asteroid A (mass 1,000 kg) moved at 100 m/s and asteroid B (mass 2,000 kg) moved at 80 m/s in the opposite direction. Use momentum conservation (make a complete Momentum chart) to find the velocity of the asteroids after the collision. 2. Two asteroids identical to those in (1) collide at right angles and stick together. "Collide at right angles" means that their initial velocities were perpendicular to each...
Object A has mass mA = 9 kg and initial momentum PA = < 15,-8,0 >...

Object A has mass mA = 9 kg and initial momentum PA = < 15,-8,0 > kgm/s, just before it strikes object B, which has mass mg = 12 kg. Just before the collision object B has initial momentum 8,1 = < 4,7,0 > kg. m/s. Consider a system consisting of both objects A and B. What is the total initial momentum of this system, just before the collision? sysj = (19,-1,0) kg.m/s The forces that A and B exert...