Answer:
Correct statement will be dragster rounded the curve with constant speed
Explanation:
It is given that his fried says that The dragster rounded the curve with a constant velocity of 100 km/hour
It is a wrong statement because in circular motion velocity will never constant as the direction of speed is always changing
The correct statement will be dragster rounded the curve with a constant speed because speed may be constant in circular motion
Answer:
Explanation:
Given that,
Initial speed of the cart, u = 0
Let F force is applied to the cart for time 
after which the car has speed v. The force on an object is given by :
F = ma
m is the mass of the cart
We need to find the speed of second cart, if the same force is applied for the same time to a second cart with twice the mass. Force becomes,
So, the speed of second cart is half of the initial speed of first cart. So, the correct option is (b).
Answer:
In which school you are???
Explanation:
velocity and wavelength are likely to change in the process
- When a wave travels from one medium to another it undergoes a change in direction and this is referred to as refraction.
- Refraction is the bending of a wave or a change in direction of a wave as it travels from one medium to another. Refraction is accompanied by change in velocity and wavelength of a wave
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