Explanation:
It is given that,
Mass of the truck, m = 2000 kg
Initial velocity of the truck, u = 34 km/h = 9.44 m/s
Final velocity of the truck, v = 58 km/h = 16.11 m/s
(a) Change in truck's kinetic energy,
(b) Change in momentum of the truck,
Hence, this is the required solution.
Answer:
MOMENTUM
Explanation:
another way of saying getting the smallest force possible is the word " MOMENTUM".
momentum is the ability to keep maintaining,incresing or itself developing to move at constant speed or to increase the speed.
Answer:
3rd choice
Explanation:
heat is transfered causing it to melt
Speed is the rate of change in distance covered by a moving body. It is given by dividing distance covered and time taken.
She takes 3 seconds to read the text which is equivalent to 3/ 3600 ( since 1hr=3600 secs) . we get 0.00833 hours.
Distance is given by speed × time
= 60 km/h × 0.00833 hrs = 0.05 km
Therefore, the car moved a distance of 0.05 km while she read the text.
Answer: 3 A
Explanation:
According to<u> Ohm's law</u>:
Where:
is the voltage
is the resistance of the resistor
is the electric current (the value we want to find)
Isolating :
Finally: