Question
a car weighing 1600kg moving with a velocity of 30 meter per second retarded uniformly coming to rest in 20 seconds calculate
1, initial momentum
2, final momentum
3, rate of change of momentum
4,acceleration of the car
5, magnitude of the force apply
1, initial momentum
2, final momentum
3, rate of change of momentum
4,acceleration of the car
5, magnitude of the force apply
Answers
(1) 1600*30
(2) 0
(3) p = mv, so dp/dt = m dv/dt = 1600*(0-30)/(20-0) = -2400 kg-m/s
(4) see (3)
(5) F = ma
(2) 0
(3) p = mv, so dp/dt = m dv/dt = 1600*(0-30)/(20-0) = -2400 kg-m/s
(4) see (3)
(5) F = ma
Samaj nahi aaya explain briefly
1) initial momentum =mv
Mass =1600 kg
Velocity =30m/sec
=1600 *30=4800 kg m/s
2)final momentum=mv
If it is slowing down then the final velocity = 0m/Sec
Mass =1600kg
=mv
1600*0=0 kg m/sec
3)rate of change of momentum =m1u1 +m2u2=m1v1+m2v2
U = initial velocity =0m/sec
V=final velocity =30m/sec
Mass = 1600kg
1600*0+1600*0=1600*30+1600*30
0=4800+4800
Rate of change of momentum =9600
Mass =1600 kg
Velocity =30m/sec
=1600 *30=4800 kg m/s
2)final momentum=mv
If it is slowing down then the final velocity = 0m/Sec
Mass =1600kg
=mv
1600*0=0 kg m/sec
3)rate of change of momentum =m1u1 +m2u2=m1v1+m2v2
U = initial velocity =0m/sec
V=final velocity =30m/sec
Mass = 1600kg
1600*0+1600*0=1600*30+1600*30
0=4800+4800
Rate of change of momentum =9600
Ur ans 3 is wrong
Rate of change of momentum is 2400 N
Plz always check and then post, how can anyone be this much irresponsible
Rate of change of momentum is 2400 N
Plz always check and then post, how can anyone be this much irresponsible
What is answer 4 and 5
Bakwashš¤£
Thoda aur sahi se samjao
Isme kuch clear nahi ho raha hai
Related Questions
A 3500kg truck moving at 45km/h collided head on with a 1600kg car moving at 25km/h. Find the veloci...
A car of mass of mass 1200 kg moving with a constant velocity of 60 ms-1 is retarded uniformly to re...
A body moving with an initial velocity of 20 meter per seconds, accelerate uniformly at a of 4 meter...
A body moving with an initial velocity of 2 meter per second accelerates uniformly at 0.5 meter per...