A resultant force of 12N acts on a body mass of 10kg with momentum of 400kgm/s. How long does the force act on the body.
1 answer
The force acts on the body for 0.03 seconds. This can be calculated using the equation F = m*a, where F is the force, m is the mass, and a is the acceleration. Rearranging the equation to solve for a, we get a = F/m. Then, using the equation p = m*v, where p is the momentum and v is the velocity, we can solve for v, which is equal to 400/10 = 40 m/s. Finally, we can use the equation v = a*t, where t is the time, to solve for t, which is equal to 40/12 = 0.03 seconds.