Pls answer I need to submit to my teacher. Pls. Can u pls tell the answers. Fast I will mark as brainlesttt if u say the answer only
Answers
Answer:
7) 0
8) retarding, opposite
9) mv
10)5 m/s
11) 1 kg mass at 10 m/s²
12) 1000 N
13) 6 m/s²
14) a) 10 N
b) 30 N
15) 2550 N
Answer:
I am straight up going to put the answers, no explanations as it will get too long.
Explanation:
7. 0 kg m/s
8. idk this one as it could be one of many, frictional/opposing/ etc. , it is in opposite to the direction of motion.
9. Momentum P = m*v
10. Velocity is P/m = 5m/s
11. 1 kg at 10m/s^2 would require more as inertia is greater
12. 1000 kg m/s^2 is the force required. You can calculate it by 90kmph = 25 m/s . A= 25/5 =5 m/s^2, F=MA= 200*5=1000 N
13.m1 = 5/8 ,m2 =5/24, Total mass = 5/8+5/24 = 0.833,let's say this is M.
Force is 5N, M=0.833,
A=F/M =5/0.833= 6.0024 m/s^2
14. F= MA,
a)10 N
b)30N
15. F= MA, but here the direction will be opposite to the direction of motion. , Assuming initial direction positive ,
F= -(1500*1.7) m/s^2= -2550 N
hope this helps you :)