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Answers
1. ans 3
2.vaccum.
3.speed equal distance upon time .,
and also speed gas depend upon magnitude.(SCALAR )
velocity both Direction and Magnitude.(VECTOR Quantity).
Answer:
1. Option A.
2. Option B.
3. Option D.
4. Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement. Put another way, speed is a scalar value, while velocity is a vector.
Refer given attachment for more points.
5. Acceleration of the Vehicles = -1.7 m/s².
Acceleration of the Vehicles = -1.7 m/s².Mass of the Vehicles = 1500 kg.
Acceleration of the Vehicles = -1.7 m/s².Mass of the Vehicles = 1500 kg.Using the Newton's Second law of the Motion,
Acceleration of the Vehicles = -1.7 m/s².Mass of the Vehicles = 1500 kg.Using the Newton's Second law of the Motion,Force = mass × acceleration.
Acceleration of the Vehicles = -1.7 m/s².Mass of the Vehicles = 1500 kg.Using the Newton's Second law of the Motion,Force = mass × acceleration.∴ Force = 1500 × -1.7
Acceleration of the Vehicles = -1.7 m/s².Mass of the Vehicles = 1500 kg.Using the Newton's Second law of the Motion,Force = mass × acceleration.∴ Force = 1500 × -1.7⇒ Force = -2550 N.
Acceleration of the Vehicles = -1.7 m/s².Mass of the Vehicles = 1500 kg.Using the Newton's Second law of the Motion,Force = mass × acceleration.∴ Force = 1500 × -1.7⇒ Force = -2550 N.Negative sign shows that the Force is acting in Opposite Direction.
Acceleration of the Vehicles = -1.7 m/s².Mass of the Vehicles = 1500 kg.Using the Newton's Second law of the Motion,Force = mass × acceleration.∴ Force = 1500 × -1.7⇒ Force = -2550 N.Negative sign shows that the Force is acting in Opposite Direction.Hence the force of 2500 N is acting in opposite direction.
6. In lightning process, flash and thunder are produced simultaneously. Flash is seen almost immediately because speed of light is extraordinarily large. But thunder is heard a few seconds later because speed of sound << speed of light.
7. Yes, Newton's third law of motion holds good for the force of gravitation. This means that when earth exerts a force of attraction on an object, then the object also exerts an equal force on the earth, in the opposite direction.
Explanation:
@GENIUS
