3.applicationb) 6m/s2c) 4m/sa) 8m/s2An Ostrich can acquire a velocity

1.	3.applicationb) 6m/s2c) 4m/sa) 8m/s2An Ostrich can acquire a velocity of 144 kmph in 2 s while a Leopard can acquire avelocity of 108 kmph in 3 s. Find the ratio of their accelerations.c) 4:1d) 4:3a) 2:1b) 2:320-o in cuhincted to uniform retardation of
Answer» option (c) is right answer Using v = u + atv = final velocityu = initial velocitya = accelerationt = time taken For ostrichv = 144 km/hr = 1445/18 = 40 m/su = 0t = 2 s 40 = 0 + a12a1 = 40/2 = 20 For Leopardv = 108 km/hr = 1445/18 = 30 m/su = 0t = 3 s 30 = 0 + a23a2 = 30/3 = 10 Ratio of acceleration of Ostrich and Leopard a1:a2 = 20:10 = 2:1 (a) is correct option Right answer is c. 4:1.

3.applicationb) 6m/s2c) 4m/sa) 8m/s2An Ostrich can acquire a velocity of 144 kmph in 2 s while a Leopard can acquire avelocity of 108 kmph in 3 s. Find the ratio of their accelerations.c) 4:1d) 4:3a) 2:1b) 2:320-o in cuhincted to uniform retardation of

Answer»

option (c) is right answer

Using v = u + atv = final velocityu = initial velocitya = accelerationt = time taken

For ostrichv = 144 km/hr = 144*5/18 = 40 m/su = 0t = 2 s

40 = 0 + a1*2a1 = 40/2 = 20

For Leopardv = 108 km/hr = 144*5/18 = 30 m/su = 0t = 3 s

30 = 0 + a2*3a2 = 30/3 = 10

Ratio of acceleration of Ostrich and Leopard a1:a2 = 20:10 = 2:1

(a) is correct option

Right answer is c. 4:1.

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3.applicationb) 6m/s2c) 4m/sa) 8m/s2An Ostrich can acquire a velocity of 144 kmph in 2 s while a Leopard can acquire avelocity of 108 kmph in 3 s. Find the ratio of their accelerations.c) 4:1d) 4:3a) 2:1b) 2:320-o in cuhincted to uniform retardation of

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