Question
Which law states that “an object remains at rest or in
uniform motion unless acted upon by an external force”?Solution
Newton’s First Law is also called the Law of Inertia. It says that an object will not change its motion unless a net external force acts on it. This explains why passengers jerk forward in a suddenly stopping car. It forms the foundation of classical mechanics.
The ratio of the present ages of P and Q is 6:5 respectively. If the age of P 10 years hence from now will be 100% more than the age of Q 4 years ago fr...
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In 5 years from now, the ratio of ages of P and Q will be 9:5. If age of P after 15 years is 150% more than age of Q 12 years ago, find the difference b...
Present ages of ‘K’ and ‘L’ are in the ratio 14:6, respectively. If ‘t’ years hence from now, ‘K’ will be twice as old as ‘L’, then ...
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The current age ratio of Akash to karan is 7:9, and the current age ratio of karan to Chetna is 3:5. If the average of their present ages is 62 years, d...
4 years ago, the ratio of the ages of A and B was 2:3 and after 4 years it will become 4:5. Find their present ages.
Amit age after 10 years will be 3 times his age 4 years back. What is the present age of Amit?
The ratio of age of ‘M’ 8 years ago to the age of ‘N’ 2 years hence from now is 1 : 2. If the sum of their present ages is 50 years, then find t...
"Amit and Bishnu's current ages are in the ratio 4:5. Chintu's age is 40% more than Amit's age. If Bishnu and Chintu's ages sum up to 106 years, what is...
