8. Callum writes down his jog times for each day. Mon - 15 min
Tue - 10min
Wed - 12min
Thu - 5min
Fri - No jog
He jogs at a constant speed of 9km/h. Work out the distance he jogs each day. On which day did
he jog the furthest? Show your work.

hloride, what is the mass of calcium in

explanation:

you need to stop taking that class

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied