किसी वस्तु का वेग `v = (2hati + 4hatj) ms^(-1)` समय `t = 0s` है। यह एक से गुजरता है

An object has a velocity, v = (2hati + 4hatj) ms^(-1) at time t = 0s . It undergoes a constant acceleration a = (hati - 3hatj)ms^(-2) for 4s. Then (i) Find the coordinates of the object if it is at origin at t = 0 (ii) Find the magnitude of its velocity at the end of 4s.

A body of mass 5 kg is moving with velocity of v=(2hati+6hatj)ms^(-1) at t=0s. After time t=2s, velocity of body is (10 hati+6 hatj) , then change in momentum to body is

A particle velocity changes from (2 hati - 3hatj) ms^(-1) to (3hati - 2hatj) ms^(-1) in 2s. If its mass is 1kg, the acceleraton (ms^(-2)) is

If the selling price of an article is 3/4 times its cost price, the profit/loss percent is: यदि किसी वस्तु का विक्रय मूल्य इसके क्रय मूल्य का 3/4 गुना है, तो लाभ/हानि का प्रतिशत है :

Velocity and acceleration of a particle at some instant of time are v = (3hati +4hatj) ms^(-1) and a =- (6hati +8hatj)ms^(-2) respectively. At the same instant particle is at origin. Maximum x-coordinate of particle will be

The marked price of an article is Rs 882. It is sold for Rs 806.40. If there is a loss of 4%, then by what percent above the cost was the article marked? किसी वस्तु का अंकित मूल्य 882 रुपये है | इसे 806.40 रुपये में बेचा जाता है | यदि 4% की हानि होती है, तो इस वस्तु का अंकित मूल्य क्रय मूल्य से कितना प्रतिशत अधिक था ?

A train takes 1 minute to cross a stationary pole. How long (in seconds) will the train take to cross a bridge whose length is twice the length of the train? एक रेलगाड़ी किसी स्थिर खंभ को पार करने में 1 मिनट का समय लेती है | किसी पुल, जिसकी लंबाई रेलगाड़ी की लंबाई से दोगुनी है, को पार करने में रेलगाड़ी को कितना समय लगेगा (सेकंड में)?