True
Explanation:
- If the force applied applied on a cart increases, the acceleration of the cart increases when the mass is held constant is very true.
Force and acceleration are directly proportional to one another: F = m x a
m is the mass and a is the acceleration.
- According to Newton's second law, "the acceleration of an object is directly proportional to the net force acting upon it and inversely proportional to its mass".
- The higher the force on an object, the faster it will accelerate.
Learn more:
Newton's law of motion brainly.com/question/11411375
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Answer:
Explanation:
Momentum before collision = momentum after collision
If
m₁ = 300 kg
v₁= 10 m/s
m₂ =1000 kg
v₂ = 0 as the car was parked
momemum before collision =
m₁ v₁ + v₂ m₂= 3000kgm/sec
momentum after collision= m₁ v₃+ v₄m₂=
300v₃+15m/sx 1000kg
now from the law of conservation of momentum
momentum before collision= momentum after collision
3000kgm/s= 300v₃ +15000kgm/s
-15000+3000= 300v₃
-12000=300v₃
v₃= -40m/s
the velocity of truck after collision is 40m/s and the negative sign indicates that its a recoil velocity.